Line data Source code
1 : /*-------------------------------------------------------------------------
2 : *
3 : * typecmds.c
4 : * Routines for SQL commands that manipulate types (and domains).
5 : *
6 : * Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group
7 : * Portions Copyright (c) 1994, Regents of the University of California
8 : *
9 : *
10 : * IDENTIFICATION
11 : * src/backend/commands/typecmds.c
12 : *
13 : * DESCRIPTION
14 : * The "DefineFoo" routines take the parse tree and pick out the
15 : * appropriate arguments/flags, passing the results to the
16 : * corresponding "FooCreate" routines (in src/backend/catalog) that do
17 : * the actual catalog-munging. These routines also verify permission
18 : * of the user to execute the command.
19 : *
20 : * NOTES
21 : * These things must be defined and committed in the following order:
22 : * "create function":
23 : * input/output, recv/send functions
24 : * "create type":
25 : * type
26 : * "create operator":
27 : * operators
28 : *
29 : *
30 : *-------------------------------------------------------------------------
31 : */
32 : #include "postgres.h"
33 :
34 : #include "access/genam.h"
35 : #include "access/htup_details.h"
36 : #include "access/relation.h"
37 : #include "access/table.h"
38 : #include "access/tableam.h"
39 : #include "access/xact.h"
40 : #include "catalog/binary_upgrade.h"
41 : #include "catalog/catalog.h"
42 : #include "catalog/heap.h"
43 : #include "catalog/objectaccess.h"
44 : #include "catalog/pg_am.h"
45 : #include "catalog/pg_authid.h"
46 : #include "catalog/pg_cast.h"
47 : #include "catalog/pg_collation.h"
48 : #include "catalog/pg_constraint.h"
49 : #include "catalog/pg_depend.h"
50 : #include "catalog/pg_enum.h"
51 : #include "catalog/pg_language.h"
52 : #include "catalog/pg_namespace.h"
53 : #include "catalog/pg_proc.h"
54 : #include "catalog/pg_range.h"
55 : #include "catalog/pg_type.h"
56 : #include "commands/defrem.h"
57 : #include "commands/tablecmds.h"
58 : #include "commands/typecmds.h"
59 : #include "executor/executor.h"
60 : #include "miscadmin.h"
61 : #include "nodes/makefuncs.h"
62 : #include "optimizer/optimizer.h"
63 : #include "parser/parse_coerce.h"
64 : #include "parser/parse_collate.h"
65 : #include "parser/parse_expr.h"
66 : #include "parser/parse_func.h"
67 : #include "parser/parse_type.h"
68 : #include "utils/builtins.h"
69 : #include "utils/fmgroids.h"
70 : #include "utils/inval.h"
71 : #include "utils/lsyscache.h"
72 : #include "utils/rel.h"
73 : #include "utils/ruleutils.h"
74 : #include "utils/snapmgr.h"
75 : #include "utils/syscache.h"
76 :
77 :
78 : /* result structure for get_rels_with_domain() */
79 : typedef struct
80 : {
81 : Relation rel; /* opened and locked relation */
82 : int natts; /* number of attributes of interest */
83 : int *atts; /* attribute numbers */
84 : /* atts[] is of allocated length RelationGetNumberOfAttributes(rel) */
85 : } RelToCheck;
86 :
87 : /* parameter structure for AlterTypeRecurse() */
88 : typedef struct
89 : {
90 : /* Flags indicating which type attributes to update */
91 : bool updateStorage;
92 : bool updateReceive;
93 : bool updateSend;
94 : bool updateTypmodin;
95 : bool updateTypmodout;
96 : bool updateAnalyze;
97 : bool updateSubscript;
98 : /* New values for relevant attributes */
99 : char storage;
100 : Oid receiveOid;
101 : Oid sendOid;
102 : Oid typmodinOid;
103 : Oid typmodoutOid;
104 : Oid analyzeOid;
105 : Oid subscriptOid;
106 : } AlterTypeRecurseParams;
107 :
108 : /* Potentially set by pg_upgrade_support functions */
109 : Oid binary_upgrade_next_array_pg_type_oid = InvalidOid;
110 : Oid binary_upgrade_next_mrng_pg_type_oid = InvalidOid;
111 : Oid binary_upgrade_next_mrng_array_pg_type_oid = InvalidOid;
112 :
113 : static void makeRangeConstructors(const char *name, Oid namespace,
114 : Oid rangeOid, Oid subtype);
115 : static void makeMultirangeConstructors(const char *name, Oid namespace,
116 : Oid multirangeOid, Oid rangeOid,
117 : Oid rangeArrayOid, Oid *castFuncOid);
118 : static Oid findTypeInputFunction(List *procname, Oid typeOid);
119 : static Oid findTypeOutputFunction(List *procname, Oid typeOid);
120 : static Oid findTypeReceiveFunction(List *procname, Oid typeOid);
121 : static Oid findTypeSendFunction(List *procname, Oid typeOid);
122 : static Oid findTypeTypmodinFunction(List *procname);
123 : static Oid findTypeTypmodoutFunction(List *procname);
124 : static Oid findTypeAnalyzeFunction(List *procname, Oid typeOid);
125 : static Oid findTypeSubscriptingFunction(List *procname, Oid typeOid);
126 : static Oid findRangeSubOpclass(List *opcname, Oid subtype);
127 : static Oid findRangeCanonicalFunction(List *procname, Oid typeOid);
128 : static Oid findRangeSubtypeDiffFunction(List *procname, Oid subtype);
129 : static void validateDomainCheckConstraint(Oid domainoid, const char *ccbin, LOCKMODE lockmode);
130 : static void validateDomainNotNullConstraint(Oid domainoid);
131 : static List *get_rels_with_domain(Oid domainOid, LOCKMODE lockmode);
132 : static void checkEnumOwner(HeapTuple tup);
133 : static char *domainAddCheckConstraint(Oid domainOid, Oid domainNamespace,
134 : Oid baseTypeOid,
135 : int typMod, Constraint *constr,
136 : const char *domainName, ObjectAddress *constrAddr);
137 : static Node *replace_domain_constraint_value(ParseState *pstate,
138 : ColumnRef *cref);
139 : static void domainAddNotNullConstraint(Oid domainOid, Oid domainNamespace, Oid baseTypeOid,
140 : int typMod, Constraint *constr,
141 : const char *domainName, ObjectAddress *constrAddr);
142 : static void AlterTypeRecurse(Oid typeOid, bool isImplicitArray,
143 : HeapTuple tup, Relation catalog,
144 : AlterTypeRecurseParams *atparams);
145 :
146 :
147 : /*
148 : * DefineType
149 : * Registers a new base type.
150 : */
151 : ObjectAddress
152 396 : DefineType(ParseState *pstate, List *names, List *parameters)
153 : {
154 : char *typeName;
155 : Oid typeNamespace;
156 396 : int16 internalLength = -1; /* default: variable-length */
157 396 : List *inputName = NIL;
158 396 : List *outputName = NIL;
159 396 : List *receiveName = NIL;
160 396 : List *sendName = NIL;
161 396 : List *typmodinName = NIL;
162 396 : List *typmodoutName = NIL;
163 396 : List *analyzeName = NIL;
164 396 : List *subscriptName = NIL;
165 396 : char category = TYPCATEGORY_USER;
166 396 : bool preferred = false;
167 396 : char delimiter = DEFAULT_TYPDELIM;
168 396 : Oid elemType = InvalidOid;
169 396 : char *defaultValue = NULL;
170 396 : bool byValue = false;
171 396 : char alignment = TYPALIGN_INT; /* default alignment */
172 396 : char storage = TYPSTORAGE_PLAIN; /* default TOAST storage method */
173 396 : Oid collation = InvalidOid;
174 396 : DefElem *likeTypeEl = NULL;
175 396 : DefElem *internalLengthEl = NULL;
176 396 : DefElem *inputNameEl = NULL;
177 396 : DefElem *outputNameEl = NULL;
178 396 : DefElem *receiveNameEl = NULL;
179 396 : DefElem *sendNameEl = NULL;
180 396 : DefElem *typmodinNameEl = NULL;
181 396 : DefElem *typmodoutNameEl = NULL;
182 396 : DefElem *analyzeNameEl = NULL;
183 396 : DefElem *subscriptNameEl = NULL;
184 396 : DefElem *categoryEl = NULL;
185 396 : DefElem *preferredEl = NULL;
186 396 : DefElem *delimiterEl = NULL;
187 396 : DefElem *elemTypeEl = NULL;
188 396 : DefElem *defaultValueEl = NULL;
189 396 : DefElem *byValueEl = NULL;
190 396 : DefElem *alignmentEl = NULL;
191 396 : DefElem *storageEl = NULL;
192 396 : DefElem *collatableEl = NULL;
193 : Oid inputOid;
194 : Oid outputOid;
195 396 : Oid receiveOid = InvalidOid;
196 396 : Oid sendOid = InvalidOid;
197 396 : Oid typmodinOid = InvalidOid;
198 396 : Oid typmodoutOid = InvalidOid;
199 396 : Oid analyzeOid = InvalidOid;
200 396 : Oid subscriptOid = InvalidOid;
201 : char *array_type;
202 : Oid array_oid;
203 : Oid typoid;
204 : ListCell *pl;
205 : ObjectAddress address;
206 :
207 : /*
208 : * As of Postgres 8.4, we require superuser privilege to create a base
209 : * type. This is simple paranoia: there are too many ways to mess up the
210 : * system with an incorrect type definition (for instance, representation
211 : * parameters that don't match what the C code expects). In practice it
212 : * takes superuser privilege to create the I/O functions, and so the
213 : * former requirement that you own the I/O functions pretty much forced
214 : * superuserness anyway. We're just making doubly sure here.
215 : *
216 : * XXX re-enable NOT_USED code sections below if you remove this test.
217 : */
218 396 : if (!superuser())
219 0 : ereport(ERROR,
220 : (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
221 : errmsg("must be superuser to create a base type")));
222 :
223 : /* Convert list of names to a name and namespace */
224 396 : typeNamespace = QualifiedNameGetCreationNamespace(names, &typeName);
225 :
226 : #ifdef NOT_USED
227 : /* XXX this is unnecessary given the superuser check above */
228 : /* Check we have creation rights in target namespace */
229 : aclresult = object_aclcheck(NamespaceRelationId, typeNamespace, GetUserId(), ACL_CREATE);
230 : if (aclresult != ACLCHECK_OK)
231 : aclcheck_error(aclresult, OBJECT_SCHEMA,
232 : get_namespace_name(typeNamespace));
233 : #endif
234 :
235 : /*
236 : * Look to see if type already exists.
237 : */
238 396 : typoid = GetSysCacheOid2(TYPENAMENSP, Anum_pg_type_oid,
239 : CStringGetDatum(typeName),
240 : ObjectIdGetDatum(typeNamespace));
241 :
242 : /*
243 : * If it's not a shell, see if it's an autogenerated array type, and if so
244 : * rename it out of the way.
245 : */
246 396 : if (OidIsValid(typoid) && get_typisdefined(typoid))
247 : {
248 6 : if (moveArrayTypeName(typoid, typeName, typeNamespace))
249 0 : typoid = InvalidOid;
250 : else
251 6 : ereport(ERROR,
252 : (errcode(ERRCODE_DUPLICATE_OBJECT),
253 : errmsg("type \"%s\" already exists", typeName)));
254 : }
255 :
256 : /*
257 : * If this command is a parameterless CREATE TYPE, then we're just here to
258 : * make a shell type, so do that (or fail if there already is a shell).
259 : */
260 390 : if (parameters == NIL)
261 : {
262 150 : if (OidIsValid(typoid))
263 6 : ereport(ERROR,
264 : (errcode(ERRCODE_DUPLICATE_OBJECT),
265 : errmsg("type \"%s\" already exists", typeName)));
266 :
267 144 : address = TypeShellMake(typeName, typeNamespace, GetUserId());
268 144 : return address;
269 : }
270 :
271 : /*
272 : * Otherwise, we must already have a shell type, since there is no other
273 : * way that the I/O functions could have been created.
274 : */
275 240 : if (!OidIsValid(typoid))
276 6 : ereport(ERROR,
277 : (errcode(ERRCODE_DUPLICATE_OBJECT),
278 : errmsg("type \"%s\" does not exist", typeName),
279 : errhint("Create the type as a shell type, then create its I/O functions, then do a full CREATE TYPE.")));
280 :
281 : /* Extract the parameters from the parameter list */
282 1182 : foreach(pl, parameters)
283 : {
284 948 : DefElem *defel = (DefElem *) lfirst(pl);
285 : DefElem **defelp;
286 :
287 948 : if (strcmp(defel->defname, "like") == 0)
288 56 : defelp = &likeTypeEl;
289 892 : else if (strcmp(defel->defname, "internallength") == 0)
290 156 : defelp = &internalLengthEl;
291 736 : else if (strcmp(defel->defname, "input") == 0)
292 228 : defelp = &inputNameEl;
293 508 : else if (strcmp(defel->defname, "output") == 0)
294 228 : defelp = &outputNameEl;
295 280 : else if (strcmp(defel->defname, "receive") == 0)
296 18 : defelp = &receiveNameEl;
297 262 : else if (strcmp(defel->defname, "send") == 0)
298 18 : defelp = &sendNameEl;
299 244 : else if (strcmp(defel->defname, "typmod_in") == 0)
300 8 : defelp = &typmodinNameEl;
301 236 : else if (strcmp(defel->defname, "typmod_out") == 0)
302 8 : defelp = &typmodoutNameEl;
303 228 : else if (strcmp(defel->defname, "analyze") == 0 ||
304 228 : strcmp(defel->defname, "analyse") == 0)
305 0 : defelp = &analyzeNameEl;
306 228 : else if (strcmp(defel->defname, "subscript") == 0)
307 2 : defelp = &subscriptNameEl;
308 226 : else if (strcmp(defel->defname, "category") == 0)
309 12 : defelp = &categoryEl;
310 214 : else if (strcmp(defel->defname, "preferred") == 0)
311 12 : defelp = &preferredEl;
312 202 : else if (strcmp(defel->defname, "delimiter") == 0)
313 0 : defelp = &delimiterEl;
314 202 : else if (strcmp(defel->defname, "element") == 0)
315 14 : defelp = &elemTypeEl;
316 188 : else if (strcmp(defel->defname, "default") == 0)
317 18 : defelp = &defaultValueEl;
318 170 : else if (strcmp(defel->defname, "passedbyvalue") == 0)
319 14 : defelp = &byValueEl;
320 156 : else if (strcmp(defel->defname, "alignment") == 0)
321 56 : defelp = &alignmentEl;
322 100 : else if (strcmp(defel->defname, "storage") == 0)
323 60 : defelp = &storageEl;
324 40 : else if (strcmp(defel->defname, "collatable") == 0)
325 4 : defelp = &collatableEl;
326 : else
327 : {
328 : /* WARNING, not ERROR, for historical backwards-compatibility */
329 36 : ereport(WARNING,
330 : (errcode(ERRCODE_SYNTAX_ERROR),
331 : errmsg("type attribute \"%s\" not recognized",
332 : defel->defname),
333 : parser_errposition(pstate, defel->location)));
334 36 : continue;
335 : }
336 912 : if (*defelp != NULL)
337 0 : errorConflictingDefElem(defel, pstate);
338 912 : *defelp = defel;
339 : }
340 :
341 : /*
342 : * Now interpret the options; we do this separately so that LIKE can be
343 : * overridden by other options regardless of the ordering in the parameter
344 : * list.
345 : */
346 234 : if (likeTypeEl)
347 : {
348 : Type likeType;
349 : Form_pg_type likeForm;
350 :
351 56 : likeType = typenameType(pstate, defGetTypeName(likeTypeEl), NULL);
352 50 : likeForm = (Form_pg_type) GETSTRUCT(likeType);
353 50 : internalLength = likeForm->typlen;
354 50 : byValue = likeForm->typbyval;
355 50 : alignment = likeForm->typalign;
356 50 : storage = likeForm->typstorage;
357 50 : ReleaseSysCache(likeType);
358 : }
359 228 : if (internalLengthEl)
360 156 : internalLength = defGetTypeLength(internalLengthEl);
361 228 : if (inputNameEl)
362 222 : inputName = defGetQualifiedName(inputNameEl);
363 228 : if (outputNameEl)
364 222 : outputName = defGetQualifiedName(outputNameEl);
365 228 : if (receiveNameEl)
366 18 : receiveName = defGetQualifiedName(receiveNameEl);
367 228 : if (sendNameEl)
368 18 : sendName = defGetQualifiedName(sendNameEl);
369 228 : if (typmodinNameEl)
370 8 : typmodinName = defGetQualifiedName(typmodinNameEl);
371 228 : if (typmodoutNameEl)
372 8 : typmodoutName = defGetQualifiedName(typmodoutNameEl);
373 228 : if (analyzeNameEl)
374 0 : analyzeName = defGetQualifiedName(analyzeNameEl);
375 228 : if (subscriptNameEl)
376 2 : subscriptName = defGetQualifiedName(subscriptNameEl);
377 228 : if (categoryEl)
378 : {
379 12 : char *p = defGetString(categoryEl);
380 :
381 12 : category = p[0];
382 : /* restrict to non-control ASCII */
383 12 : if (category < 32 || category > 126)
384 0 : ereport(ERROR,
385 : (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
386 : errmsg("invalid type category \"%s\": must be simple ASCII",
387 : p)));
388 : }
389 228 : if (preferredEl)
390 12 : preferred = defGetBoolean(preferredEl);
391 228 : if (delimiterEl)
392 : {
393 0 : char *p = defGetString(delimiterEl);
394 :
395 0 : delimiter = p[0];
396 : /* XXX shouldn't we restrict the delimiter? */
397 : }
398 228 : if (elemTypeEl)
399 : {
400 14 : elemType = typenameTypeId(NULL, defGetTypeName(elemTypeEl));
401 : /* disallow arrays of pseudotypes */
402 14 : if (get_typtype(elemType) == TYPTYPE_PSEUDO)
403 0 : ereport(ERROR,
404 : (errcode(ERRCODE_DATATYPE_MISMATCH),
405 : errmsg("array element type cannot be %s",
406 : format_type_be(elemType))));
407 : }
408 228 : if (defaultValueEl)
409 18 : defaultValue = defGetString(defaultValueEl);
410 228 : if (byValueEl)
411 14 : byValue = defGetBoolean(byValueEl);
412 228 : if (alignmentEl)
413 : {
414 56 : char *a = defGetString(alignmentEl);
415 :
416 : /*
417 : * Note: if argument was an unquoted identifier, parser will have
418 : * applied translations to it, so be prepared to recognize translated
419 : * type names as well as the nominal form.
420 : */
421 94 : if (pg_strcasecmp(a, "double") == 0 ||
422 76 : pg_strcasecmp(a, "float8") == 0 ||
423 38 : pg_strcasecmp(a, "pg_catalog.float8") == 0)
424 18 : alignment = TYPALIGN_DOUBLE;
425 44 : else if (pg_strcasecmp(a, "int4") == 0 ||
426 6 : pg_strcasecmp(a, "pg_catalog.int4") == 0)
427 38 : alignment = TYPALIGN_INT;
428 0 : else if (pg_strcasecmp(a, "int2") == 0 ||
429 0 : pg_strcasecmp(a, "pg_catalog.int2") == 0)
430 0 : alignment = TYPALIGN_SHORT;
431 0 : else if (pg_strcasecmp(a, "char") == 0 ||
432 0 : pg_strcasecmp(a, "pg_catalog.bpchar") == 0)
433 0 : alignment = TYPALIGN_CHAR;
434 : else
435 0 : ereport(ERROR,
436 : (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
437 : errmsg("alignment \"%s\" not recognized", a)));
438 : }
439 228 : if (storageEl)
440 : {
441 60 : char *a = defGetString(storageEl);
442 :
443 60 : if (pg_strcasecmp(a, "plain") == 0)
444 18 : storage = TYPSTORAGE_PLAIN;
445 42 : else if (pg_strcasecmp(a, "external") == 0)
446 0 : storage = TYPSTORAGE_EXTERNAL;
447 42 : else if (pg_strcasecmp(a, "extended") == 0)
448 36 : storage = TYPSTORAGE_EXTENDED;
449 6 : else if (pg_strcasecmp(a, "main") == 0)
450 6 : storage = TYPSTORAGE_MAIN;
451 : else
452 0 : ereport(ERROR,
453 : (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
454 : errmsg("storage \"%s\" not recognized", a)));
455 : }
456 228 : if (collatableEl)
457 4 : collation = defGetBoolean(collatableEl) ? DEFAULT_COLLATION_OID : InvalidOid;
458 :
459 : /*
460 : * make sure we have our required definitions
461 : */
462 228 : if (inputName == NIL)
463 6 : ereport(ERROR,
464 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
465 : errmsg("type input function must be specified")));
466 222 : if (outputName == NIL)
467 0 : ereport(ERROR,
468 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
469 : errmsg("type output function must be specified")));
470 :
471 222 : if (typmodinName == NIL && typmodoutName != NIL)
472 0 : ereport(ERROR,
473 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
474 : errmsg("type modifier output function is useless without a type modifier input function")));
475 :
476 : /*
477 : * Convert I/O proc names to OIDs
478 : */
479 222 : inputOid = findTypeInputFunction(inputName, typoid);
480 216 : outputOid = findTypeOutputFunction(outputName, typoid);
481 216 : if (receiveName)
482 18 : receiveOid = findTypeReceiveFunction(receiveName, typoid);
483 216 : if (sendName)
484 18 : sendOid = findTypeSendFunction(sendName, typoid);
485 :
486 : /*
487 : * Convert typmodin/out function proc names to OIDs.
488 : */
489 216 : if (typmodinName)
490 8 : typmodinOid = findTypeTypmodinFunction(typmodinName);
491 216 : if (typmodoutName)
492 8 : typmodoutOid = findTypeTypmodoutFunction(typmodoutName);
493 :
494 : /*
495 : * Convert analysis function proc name to an OID. If no analysis function
496 : * is specified, we'll use zero to select the built-in default algorithm.
497 : */
498 216 : if (analyzeName)
499 0 : analyzeOid = findTypeAnalyzeFunction(analyzeName, typoid);
500 :
501 : /*
502 : * Likewise look up the subscripting function if any. If it is not
503 : * specified, but a typelem is specified, allow that if
504 : * raw_array_subscript_handler can be used. (This is for backwards
505 : * compatibility; maybe someday we should throw an error instead.)
506 : */
507 216 : if (subscriptName)
508 2 : subscriptOid = findTypeSubscriptingFunction(subscriptName, typoid);
509 214 : else if (OidIsValid(elemType))
510 : {
511 6 : if (internalLength > 0 && !byValue && get_typlen(elemType) > 0)
512 6 : subscriptOid = F_RAW_ARRAY_SUBSCRIPT_HANDLER;
513 : else
514 0 : ereport(ERROR,
515 : (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
516 : errmsg("element type cannot be specified without a subscripting function")));
517 : }
518 :
519 : /*
520 : * Check permissions on functions. We choose to require the creator/owner
521 : * of a type to also own the underlying functions. Since creating a type
522 : * is tantamount to granting public execute access on the functions, the
523 : * minimum sane check would be for execute-with-grant-option. But we
524 : * don't have a way to make the type go away if the grant option is
525 : * revoked, so ownership seems better.
526 : *
527 : * XXX For now, this is all unnecessary given the superuser check above.
528 : * If we ever relax that, these calls likely should be moved into
529 : * findTypeInputFunction et al, where they could be shared by AlterType.
530 : */
531 : #ifdef NOT_USED
532 : if (inputOid && !object_ownercheck(ProcedureRelationId, inputOid, GetUserId()))
533 : aclcheck_error(ACLCHECK_NOT_OWNER, OBJECT_FUNCTION,
534 : NameListToString(inputName));
535 : if (outputOid && !object_ownercheck(ProcedureRelationId, outputOid, GetUserId()))
536 : aclcheck_error(ACLCHECK_NOT_OWNER, OBJECT_FUNCTION,
537 : NameListToString(outputName));
538 : if (receiveOid && !object_ownercheck(ProcedureRelationId, receiveOid, GetUserId()))
539 : aclcheck_error(ACLCHECK_NOT_OWNER, OBJECT_FUNCTION,
540 : NameListToString(receiveName));
541 : if (sendOid && !object_ownercheck(ProcedureRelationId, sendOid, GetUserId()))
542 : aclcheck_error(ACLCHECK_NOT_OWNER, OBJECT_FUNCTION,
543 : NameListToString(sendName));
544 : if (typmodinOid && !object_ownercheck(ProcedureRelationId, typmodinOid, GetUserId()))
545 : aclcheck_error(ACLCHECK_NOT_OWNER, OBJECT_FUNCTION,
546 : NameListToString(typmodinName));
547 : if (typmodoutOid && !object_ownercheck(ProcedureRelationId, typmodoutOid, GetUserId()))
548 : aclcheck_error(ACLCHECK_NOT_OWNER, OBJECT_FUNCTION,
549 : NameListToString(typmodoutName));
550 : if (analyzeOid && !object_ownercheck(ProcedureRelationId, analyzeOid, GetUserId()))
551 : aclcheck_error(ACLCHECK_NOT_OWNER, OBJECT_FUNCTION,
552 : NameListToString(analyzeName));
553 : if (subscriptOid && !object_ownercheck(ProcedureRelationId, subscriptOid, GetUserId()))
554 : aclcheck_error(ACLCHECK_NOT_OWNER, OBJECT_FUNCTION,
555 : NameListToString(subscriptName));
556 : #endif
557 :
558 : /*
559 : * OK, we're done checking, time to make the type. We must assign the
560 : * array type OID ahead of calling TypeCreate, since the base type and
561 : * array type each refer to the other.
562 : */
563 216 : array_oid = AssignTypeArrayOid();
564 :
565 : /*
566 : * now have TypeCreate do all the real work.
567 : *
568 : * Note: the pg_type.oid is stored in user tables as array elements (base
569 : * types) in ArrayType and in composite types in DatumTupleFields. This
570 : * oid must be preserved by binary upgrades.
571 : */
572 : address =
573 216 : TypeCreate(InvalidOid, /* no predetermined type OID */
574 : typeName, /* type name */
575 : typeNamespace, /* namespace */
576 : InvalidOid, /* relation oid (n/a here) */
577 : 0, /* relation kind (ditto) */
578 : GetUserId(), /* owner's ID */
579 : internalLength, /* internal size */
580 : TYPTYPE_BASE, /* type-type (base type) */
581 : category, /* type-category */
582 : preferred, /* is it a preferred type? */
583 : delimiter, /* array element delimiter */
584 : inputOid, /* input procedure */
585 : outputOid, /* output procedure */
586 : receiveOid, /* receive procedure */
587 : sendOid, /* send procedure */
588 : typmodinOid, /* typmodin procedure */
589 : typmodoutOid, /* typmodout procedure */
590 : analyzeOid, /* analyze procedure */
591 : subscriptOid, /* subscript procedure */
592 : elemType, /* element type ID */
593 : false, /* this is not an implicit array type */
594 : array_oid, /* array type we are about to create */
595 : InvalidOid, /* base type ID (only for domains) */
596 : defaultValue, /* default type value */
597 : NULL, /* no binary form available */
598 : byValue, /* passed by value */
599 : alignment, /* required alignment */
600 : storage, /* TOAST strategy */
601 : -1, /* typMod (Domains only) */
602 : 0, /* Array Dimensions of typbasetype */
603 : false, /* Type NOT NULL */
604 : collation); /* type's collation */
605 : Assert(typoid == address.objectId);
606 :
607 : /*
608 : * Create the array type that goes with it.
609 : */
610 216 : array_type = makeArrayTypeName(typeName, typeNamespace);
611 :
612 : /* alignment must be TYPALIGN_INT or TYPALIGN_DOUBLE for arrays */
613 216 : alignment = (alignment == TYPALIGN_DOUBLE) ? TYPALIGN_DOUBLE : TYPALIGN_INT;
614 :
615 216 : TypeCreate(array_oid, /* force assignment of this type OID */
616 : array_type, /* type name */
617 : typeNamespace, /* namespace */
618 : InvalidOid, /* relation oid (n/a here) */
619 : 0, /* relation kind (ditto) */
620 : GetUserId(), /* owner's ID */
621 : -1, /* internal size (always varlena) */
622 : TYPTYPE_BASE, /* type-type (base type) */
623 : TYPCATEGORY_ARRAY, /* type-category (array) */
624 : false, /* array types are never preferred */
625 : delimiter, /* array element delimiter */
626 : F_ARRAY_IN, /* input procedure */
627 : F_ARRAY_OUT, /* output procedure */
628 : F_ARRAY_RECV, /* receive procedure */
629 : F_ARRAY_SEND, /* send procedure */
630 : typmodinOid, /* typmodin procedure */
631 : typmodoutOid, /* typmodout procedure */
632 : F_ARRAY_TYPANALYZE, /* analyze procedure */
633 : F_ARRAY_SUBSCRIPT_HANDLER, /* array subscript procedure */
634 : typoid, /* element type ID */
635 : true, /* yes this is an array type */
636 : InvalidOid, /* no further array type */
637 : InvalidOid, /* base type ID */
638 : NULL, /* never a default type value */
639 : NULL, /* binary default isn't sent either */
640 : false, /* never passed by value */
641 : alignment, /* see above */
642 : TYPSTORAGE_EXTENDED, /* ARRAY is always toastable */
643 : -1, /* typMod (Domains only) */
644 : 0, /* Array dimensions of typbasetype */
645 : false, /* Type NOT NULL */
646 : collation); /* type's collation */
647 :
648 216 : pfree(array_type);
649 :
650 216 : return address;
651 : }
652 :
653 : /*
654 : * Guts of type deletion.
655 : */
656 : void
657 78466 : RemoveTypeById(Oid typeOid)
658 : {
659 : Relation relation;
660 : HeapTuple tup;
661 :
662 78466 : relation = table_open(TypeRelationId, RowExclusiveLock);
663 :
664 78466 : tup = SearchSysCache1(TYPEOID, ObjectIdGetDatum(typeOid));
665 78466 : if (!HeapTupleIsValid(tup))
666 0 : elog(ERROR, "cache lookup failed for type %u", typeOid);
667 :
668 78466 : CatalogTupleDelete(relation, &tup->t_self);
669 :
670 : /*
671 : * If it is an enum, delete the pg_enum entries too; we don't bother with
672 : * making dependency entries for those, so it has to be done "by hand"
673 : * here.
674 : */
675 78466 : if (((Form_pg_type) GETSTRUCT(tup))->typtype == TYPTYPE_ENUM)
676 324 : EnumValuesDelete(typeOid);
677 :
678 : /*
679 : * If it is a range type, delete the pg_range entry too; we don't bother
680 : * with making a dependency entry for that, so it has to be done "by hand"
681 : * here.
682 : */
683 78466 : if (((Form_pg_type) GETSTRUCT(tup))->typtype == TYPTYPE_RANGE)
684 104 : RangeDelete(typeOid);
685 :
686 78466 : ReleaseSysCache(tup);
687 :
688 78466 : table_close(relation, RowExclusiveLock);
689 78466 : }
690 :
691 :
692 : /*
693 : * DefineDomain
694 : * Registers a new domain.
695 : */
696 : ObjectAddress
697 1474 : DefineDomain(ParseState *pstate, CreateDomainStmt *stmt)
698 : {
699 : char *domainName;
700 : char *domainArrayName;
701 : Oid domainNamespace;
702 : AclResult aclresult;
703 : int16 internalLength;
704 : Oid inputProcedure;
705 : Oid outputProcedure;
706 : Oid receiveProcedure;
707 : Oid sendProcedure;
708 : Oid analyzeProcedure;
709 : bool byValue;
710 : char category;
711 : char delimiter;
712 : char alignment;
713 : char storage;
714 : char typtype;
715 : Datum datum;
716 : bool isnull;
717 1474 : char *defaultValue = NULL;
718 1474 : char *defaultValueBin = NULL;
719 1474 : bool saw_default = false;
720 1474 : bool typNotNull = false;
721 1474 : bool nullDefined = false;
722 1474 : int32 typNDims = list_length(stmt->typeName->arrayBounds);
723 : HeapTuple typeTup;
724 1474 : List *schema = stmt->constraints;
725 : ListCell *listptr;
726 : Oid basetypeoid;
727 : Oid old_type_oid;
728 : Oid domaincoll;
729 : Oid domainArrayOid;
730 : Form_pg_type baseType;
731 : int32 basetypeMod;
732 : Oid baseColl;
733 : ObjectAddress address;
734 :
735 : /* Convert list of names to a name and namespace */
736 1474 : domainNamespace = QualifiedNameGetCreationNamespace(stmt->domainname,
737 : &domainName);
738 :
739 : /* Check we have creation rights in target namespace */
740 1474 : aclresult = object_aclcheck(NamespaceRelationId, domainNamespace, GetUserId(),
741 : ACL_CREATE);
742 1474 : if (aclresult != ACLCHECK_OK)
743 0 : aclcheck_error(aclresult, OBJECT_SCHEMA,
744 0 : get_namespace_name(domainNamespace));
745 :
746 : /*
747 : * Check for collision with an existing type name. If there is one and
748 : * it's an autogenerated array, we can rename it out of the way.
749 : */
750 1474 : old_type_oid = GetSysCacheOid2(TYPENAMENSP, Anum_pg_type_oid,
751 : CStringGetDatum(domainName),
752 : ObjectIdGetDatum(domainNamespace));
753 1474 : if (OidIsValid(old_type_oid))
754 : {
755 0 : if (!moveArrayTypeName(old_type_oid, domainName, domainNamespace))
756 0 : ereport(ERROR,
757 : (errcode(ERRCODE_DUPLICATE_OBJECT),
758 : errmsg("type \"%s\" already exists", domainName)));
759 : }
760 :
761 : /*
762 : * Look up the base type.
763 : */
764 1474 : typeTup = typenameType(pstate, stmt->typeName, &basetypeMod);
765 1468 : baseType = (Form_pg_type) GETSTRUCT(typeTup);
766 1468 : basetypeoid = baseType->oid;
767 :
768 : /*
769 : * Base type must be a plain base type, a composite type, another domain,
770 : * an enum or a range type. Domains over pseudotypes would create a
771 : * security hole. (It would be shorter to code this to just check for
772 : * pseudotypes; but it seems safer to call out the specific typtypes that
773 : * are supported, rather than assume that all future typtypes would be
774 : * automatically supported.)
775 : */
776 1468 : typtype = baseType->typtype;
777 1468 : if (typtype != TYPTYPE_BASE &&
778 82 : typtype != TYPTYPE_COMPOSITE &&
779 32 : typtype != TYPTYPE_DOMAIN &&
780 18 : typtype != TYPTYPE_ENUM &&
781 12 : typtype != TYPTYPE_RANGE &&
782 : typtype != TYPTYPE_MULTIRANGE)
783 6 : ereport(ERROR,
784 : (errcode(ERRCODE_DATATYPE_MISMATCH),
785 : errmsg("\"%s\" is not a valid base type for a domain",
786 : TypeNameToString(stmt->typeName)),
787 : parser_errposition(pstate, stmt->typeName->location)));
788 :
789 1462 : aclresult = object_aclcheck(TypeRelationId, basetypeoid, GetUserId(), ACL_USAGE);
790 1462 : if (aclresult != ACLCHECK_OK)
791 6 : aclcheck_error_type(aclresult, basetypeoid);
792 :
793 : /*
794 : * Collect the properties of the new domain. Some are inherited from the
795 : * base type, some are not. If you change any of this inheritance
796 : * behavior, be sure to update AlterTypeRecurse() to match!
797 : */
798 :
799 : /*
800 : * Identify the collation if any
801 : */
802 1456 : baseColl = baseType->typcollation;
803 1456 : if (stmt->collClause)
804 246 : domaincoll = get_collation_oid(stmt->collClause->collname, false);
805 : else
806 1210 : domaincoll = baseColl;
807 :
808 : /* Complain if COLLATE is applied to an uncollatable type */
809 1456 : if (OidIsValid(domaincoll) && !OidIsValid(baseColl))
810 18 : ereport(ERROR,
811 : (errcode(ERRCODE_DATATYPE_MISMATCH),
812 : errmsg("collations are not supported by type %s",
813 : format_type_be(basetypeoid)),
814 : parser_errposition(pstate, stmt->typeName->location)));
815 :
816 : /* passed by value */
817 1438 : byValue = baseType->typbyval;
818 :
819 : /* Required Alignment */
820 1438 : alignment = baseType->typalign;
821 :
822 : /* TOAST Strategy */
823 1438 : storage = baseType->typstorage;
824 :
825 : /* Storage Length */
826 1438 : internalLength = baseType->typlen;
827 :
828 : /* Type Category */
829 1438 : category = baseType->typcategory;
830 :
831 : /* Array element Delimiter */
832 1438 : delimiter = baseType->typdelim;
833 :
834 : /* I/O Functions */
835 1438 : inputProcedure = F_DOMAIN_IN;
836 1438 : outputProcedure = baseType->typoutput;
837 1438 : receiveProcedure = F_DOMAIN_RECV;
838 1438 : sendProcedure = baseType->typsend;
839 :
840 : /* Domains never accept typmods, so no typmodin/typmodout needed */
841 :
842 : /* Analysis function */
843 1438 : analyzeProcedure = baseType->typanalyze;
844 :
845 : /*
846 : * Domains don't need a subscript function, since they are not
847 : * subscriptable on their own. If the base type is subscriptable, the
848 : * parser will reduce the type to the base type before subscripting.
849 : */
850 :
851 : /* Inherited default value */
852 1438 : datum = SysCacheGetAttr(TYPEOID, typeTup,
853 : Anum_pg_type_typdefault, &isnull);
854 1438 : if (!isnull)
855 0 : defaultValue = TextDatumGetCString(datum);
856 :
857 : /* Inherited default binary value */
858 1438 : datum = SysCacheGetAttr(TYPEOID, typeTup,
859 : Anum_pg_type_typdefaultbin, &isnull);
860 1438 : if (!isnull)
861 0 : defaultValueBin = TextDatumGetCString(datum);
862 :
863 : /*
864 : * Run through constraints manually to avoid the additional processing
865 : * conducted by DefineRelation() and friends.
866 : */
867 2280 : foreach(listptr, schema)
868 : {
869 920 : Constraint *constr = lfirst(listptr);
870 :
871 920 : if (!IsA(constr, Constraint))
872 0 : elog(ERROR, "unrecognized node type: %d",
873 : (int) nodeTag(constr));
874 920 : switch (constr->contype)
875 : {
876 182 : case CONSTR_DEFAULT:
877 :
878 : /*
879 : * The inherited default value may be overridden by the user
880 : * with the DEFAULT <expr> clause ... but only once.
881 : */
882 182 : if (saw_default)
883 6 : ereport(ERROR,
884 : errcode(ERRCODE_SYNTAX_ERROR),
885 : errmsg("multiple default expressions"),
886 : parser_errposition(pstate, constr->location));
887 176 : saw_default = true;
888 :
889 176 : if (constr->raw_expr)
890 : {
891 : Node *defaultExpr;
892 :
893 : /*
894 : * Cook the constr->raw_expr into an expression. Note:
895 : * name is strictly for error message
896 : */
897 176 : defaultExpr = cookDefault(pstate, constr->raw_expr,
898 : basetypeoid,
899 : basetypeMod,
900 : domainName,
901 : 0);
902 :
903 : /*
904 : * If the expression is just a NULL constant, we treat it
905 : * like not having a default.
906 : *
907 : * Note that if the basetype is another domain, we'll see
908 : * a CoerceToDomain expr here and not discard the default.
909 : * This is critical because the domain default needs to be
910 : * retained to override any default that the base domain
911 : * might have.
912 : */
913 170 : if (defaultExpr == NULL ||
914 170 : (IsA(defaultExpr, Const) &&
915 36 : ((Const *) defaultExpr)->constisnull))
916 : {
917 0 : defaultValue = NULL;
918 0 : defaultValueBin = NULL;
919 : }
920 : else
921 : {
922 : /*
923 : * Expression must be stored as a nodeToString result,
924 : * but we also require a valid textual representation
925 : * (mainly to make life easier for pg_dump).
926 : */
927 : defaultValue =
928 170 : deparse_expression(defaultExpr,
929 : NIL, false, false);
930 170 : defaultValueBin = nodeToString(defaultExpr);
931 : }
932 : }
933 : else
934 : {
935 : /* No default (can this still happen?) */
936 0 : defaultValue = NULL;
937 0 : defaultValueBin = NULL;
938 : }
939 170 : break;
940 :
941 112 : case CONSTR_NOTNULL:
942 112 : if (nullDefined)
943 : {
944 6 : if (!typNotNull)
945 0 : ereport(ERROR,
946 : errcode(ERRCODE_SYNTAX_ERROR),
947 : errmsg("conflicting NULL/NOT NULL constraints"),
948 : parser_errposition(pstate, constr->location));
949 :
950 6 : ereport(ERROR,
951 : errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
952 : errmsg("redundant NOT NULL constraint definition"),
953 : parser_errposition(pstate, constr->location));
954 : }
955 106 : if (constr->is_no_inherit)
956 6 : ereport(ERROR,
957 : errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
958 : errmsg("not-null constraints for domains cannot be marked NO INHERIT"),
959 : parser_errposition(pstate, constr->location));
960 100 : typNotNull = true;
961 100 : nullDefined = true;
962 100 : break;
963 :
964 6 : case CONSTR_NULL:
965 6 : if (nullDefined && typNotNull)
966 6 : ereport(ERROR,
967 : errcode(ERRCODE_SYNTAX_ERROR),
968 : errmsg("conflicting NULL/NOT NULL constraints"),
969 : parser_errposition(pstate, constr->location));
970 0 : typNotNull = false;
971 0 : nullDefined = true;
972 0 : break;
973 :
974 578 : case CONSTR_CHECK:
975 :
976 : /*
977 : * Check constraints are handled after domain creation, as
978 : * they require the Oid of the domain; at this point we can
979 : * only check that they're not marked NO INHERIT, because that
980 : * would be bogus.
981 : */
982 578 : if (constr->is_no_inherit)
983 6 : ereport(ERROR,
984 : errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
985 : errmsg("check constraints for domains cannot be marked NO INHERIT"),
986 : parser_errposition(pstate, constr->location));
987 :
988 572 : break;
989 :
990 : /*
991 : * All else are error cases
992 : */
993 6 : case CONSTR_UNIQUE:
994 6 : ereport(ERROR,
995 : errcode(ERRCODE_SYNTAX_ERROR),
996 : errmsg("unique constraints not possible for domains"),
997 : parser_errposition(pstate, constr->location));
998 : break;
999 :
1000 6 : case CONSTR_PRIMARY:
1001 6 : ereport(ERROR,
1002 : (errcode(ERRCODE_SYNTAX_ERROR),
1003 : errmsg("primary key constraints not possible for domains"),
1004 : parser_errposition(pstate, constr->location)));
1005 : break;
1006 :
1007 0 : case CONSTR_EXCLUSION:
1008 0 : ereport(ERROR,
1009 : (errcode(ERRCODE_SYNTAX_ERROR),
1010 : errmsg("exclusion constraints not possible for domains"),
1011 : parser_errposition(pstate, constr->location)));
1012 : break;
1013 :
1014 6 : case CONSTR_FOREIGN:
1015 6 : ereport(ERROR,
1016 : (errcode(ERRCODE_SYNTAX_ERROR),
1017 : errmsg("foreign key constraints not possible for domains"),
1018 : parser_errposition(pstate, constr->location)));
1019 : break;
1020 :
1021 6 : case CONSTR_ATTR_DEFERRABLE:
1022 : case CONSTR_ATTR_NOT_DEFERRABLE:
1023 : case CONSTR_ATTR_DEFERRED:
1024 : case CONSTR_ATTR_IMMEDIATE:
1025 6 : ereport(ERROR,
1026 : (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
1027 : errmsg("specifying constraint deferrability not supported for domains"),
1028 : parser_errposition(pstate, constr->location)));
1029 : break;
1030 :
1031 6 : case CONSTR_GENERATED:
1032 : case CONSTR_IDENTITY:
1033 6 : ereport(ERROR,
1034 : (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
1035 : errmsg("specifying GENERATED not supported for domains"),
1036 : parser_errposition(pstate, constr->location)));
1037 : break;
1038 :
1039 12 : case CONSTR_ATTR_ENFORCED:
1040 : case CONSTR_ATTR_NOT_ENFORCED:
1041 12 : ereport(ERROR,
1042 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
1043 : errmsg("specifying constraint enforceability not supported for domains"),
1044 : parser_errposition(pstate, constr->location)));
1045 : break;
1046 :
1047 : /* no default, to let compiler warn about missing case */
1048 : }
1049 : }
1050 :
1051 : /* Allocate OID for array type */
1052 1360 : domainArrayOid = AssignTypeArrayOid();
1053 :
1054 : /*
1055 : * Have TypeCreate do all the real work.
1056 : */
1057 : address =
1058 1360 : TypeCreate(InvalidOid, /* no predetermined type OID */
1059 : domainName, /* type name */
1060 : domainNamespace, /* namespace */
1061 : InvalidOid, /* relation oid (n/a here) */
1062 : 0, /* relation kind (ditto) */
1063 : GetUserId(), /* owner's ID */
1064 : internalLength, /* internal size */
1065 : TYPTYPE_DOMAIN, /* type-type (domain type) */
1066 : category, /* type-category */
1067 : false, /* domain types are never preferred */
1068 : delimiter, /* array element delimiter */
1069 : inputProcedure, /* input procedure */
1070 : outputProcedure, /* output procedure */
1071 : receiveProcedure, /* receive procedure */
1072 : sendProcedure, /* send procedure */
1073 : InvalidOid, /* typmodin procedure - none */
1074 : InvalidOid, /* typmodout procedure - none */
1075 : analyzeProcedure, /* analyze procedure */
1076 : InvalidOid, /* subscript procedure - none */
1077 : InvalidOid, /* no array element type */
1078 : false, /* this isn't an array */
1079 : domainArrayOid, /* array type we are about to create */
1080 : basetypeoid, /* base type ID */
1081 : defaultValue, /* default type value (text) */
1082 : defaultValueBin, /* default type value (binary) */
1083 : byValue, /* passed by value */
1084 : alignment, /* required alignment */
1085 : storage, /* TOAST strategy */
1086 : basetypeMod, /* typeMod value */
1087 : typNDims, /* Array dimensions for base type */
1088 : typNotNull, /* Type NOT NULL */
1089 : domaincoll); /* type's collation */
1090 :
1091 : /*
1092 : * Create the array type that goes with it.
1093 : */
1094 1360 : domainArrayName = makeArrayTypeName(domainName, domainNamespace);
1095 :
1096 : /* alignment must be TYPALIGN_INT or TYPALIGN_DOUBLE for arrays */
1097 1360 : alignment = (alignment == TYPALIGN_DOUBLE) ? TYPALIGN_DOUBLE : TYPALIGN_INT;
1098 :
1099 1360 : TypeCreate(domainArrayOid, /* force assignment of this type OID */
1100 : domainArrayName, /* type name */
1101 : domainNamespace, /* namespace */
1102 : InvalidOid, /* relation oid (n/a here) */
1103 : 0, /* relation kind (ditto) */
1104 : GetUserId(), /* owner's ID */
1105 : -1, /* internal size (always varlena) */
1106 : TYPTYPE_BASE, /* type-type (base type) */
1107 : TYPCATEGORY_ARRAY, /* type-category (array) */
1108 : false, /* array types are never preferred */
1109 : delimiter, /* array element delimiter */
1110 : F_ARRAY_IN, /* input procedure */
1111 : F_ARRAY_OUT, /* output procedure */
1112 : F_ARRAY_RECV, /* receive procedure */
1113 : F_ARRAY_SEND, /* send procedure */
1114 : InvalidOid, /* typmodin procedure - none */
1115 : InvalidOid, /* typmodout procedure - none */
1116 : F_ARRAY_TYPANALYZE, /* analyze procedure */
1117 : F_ARRAY_SUBSCRIPT_HANDLER, /* array subscript procedure */
1118 : address.objectId, /* element type ID */
1119 : true, /* yes this is an array type */
1120 : InvalidOid, /* no further array type */
1121 : InvalidOid, /* base type ID */
1122 : NULL, /* never a default type value */
1123 : NULL, /* binary default isn't sent either */
1124 : false, /* never passed by value */
1125 : alignment, /* see above */
1126 : TYPSTORAGE_EXTENDED, /* ARRAY is always toastable */
1127 : -1, /* typMod (Domains only) */
1128 : 0, /* Array dimensions of typbasetype */
1129 : false, /* Type NOT NULL */
1130 : domaincoll); /* type's collation */
1131 :
1132 1360 : pfree(domainArrayName);
1133 :
1134 : /*
1135 : * Process constraints which refer to the domain ID returned by TypeCreate
1136 : */
1137 2160 : foreach(listptr, schema)
1138 : {
1139 800 : Constraint *constr = lfirst(listptr);
1140 :
1141 : /* it must be a Constraint, per check above */
1142 :
1143 800 : switch (constr->contype)
1144 : {
1145 554 : case CONSTR_CHECK:
1146 554 : domainAddCheckConstraint(address.objectId, domainNamespace,
1147 : basetypeoid, basetypeMod,
1148 : constr, domainName, NULL);
1149 554 : break;
1150 :
1151 82 : case CONSTR_NOTNULL:
1152 82 : domainAddNotNullConstraint(address.objectId, domainNamespace,
1153 : basetypeoid, basetypeMod,
1154 : constr, domainName, NULL);
1155 82 : break;
1156 :
1157 : /* Other constraint types were fully processed above */
1158 :
1159 164 : default:
1160 164 : break;
1161 : }
1162 :
1163 : /* CCI so we can detect duplicate constraint names */
1164 800 : CommandCounterIncrement();
1165 : }
1166 :
1167 : /*
1168 : * Now we can clean up.
1169 : */
1170 1360 : ReleaseSysCache(typeTup);
1171 :
1172 1360 : return address;
1173 : }
1174 :
1175 :
1176 : /*
1177 : * DefineEnum
1178 : * Registers a new enum.
1179 : */
1180 : ObjectAddress
1181 444 : DefineEnum(CreateEnumStmt *stmt)
1182 : {
1183 : char *enumName;
1184 : char *enumArrayName;
1185 : Oid enumNamespace;
1186 : AclResult aclresult;
1187 : Oid old_type_oid;
1188 : Oid enumArrayOid;
1189 : ObjectAddress enumTypeAddr;
1190 :
1191 : /* Convert list of names to a name and namespace */
1192 444 : enumNamespace = QualifiedNameGetCreationNamespace(stmt->typeName,
1193 : &enumName);
1194 :
1195 : /* Check we have creation rights in target namespace */
1196 444 : aclresult = object_aclcheck(NamespaceRelationId, enumNamespace, GetUserId(), ACL_CREATE);
1197 444 : if (aclresult != ACLCHECK_OK)
1198 0 : aclcheck_error(aclresult, OBJECT_SCHEMA,
1199 0 : get_namespace_name(enumNamespace));
1200 :
1201 : /*
1202 : * Check for collision with an existing type name. If there is one and
1203 : * it's an autogenerated array, we can rename it out of the way.
1204 : */
1205 444 : old_type_oid = GetSysCacheOid2(TYPENAMENSP, Anum_pg_type_oid,
1206 : CStringGetDatum(enumName),
1207 : ObjectIdGetDatum(enumNamespace));
1208 444 : if (OidIsValid(old_type_oid))
1209 : {
1210 8 : if (!moveArrayTypeName(old_type_oid, enumName, enumNamespace))
1211 0 : ereport(ERROR,
1212 : (errcode(ERRCODE_DUPLICATE_OBJECT),
1213 : errmsg("type \"%s\" already exists", enumName)));
1214 : }
1215 :
1216 : /* Allocate OID for array type */
1217 444 : enumArrayOid = AssignTypeArrayOid();
1218 :
1219 : /* Create the pg_type entry */
1220 : enumTypeAddr =
1221 444 : TypeCreate(InvalidOid, /* no predetermined type OID */
1222 : enumName, /* type name */
1223 : enumNamespace, /* namespace */
1224 : InvalidOid, /* relation oid (n/a here) */
1225 : 0, /* relation kind (ditto) */
1226 : GetUserId(), /* owner's ID */
1227 : sizeof(Oid), /* internal size */
1228 : TYPTYPE_ENUM, /* type-type (enum type) */
1229 : TYPCATEGORY_ENUM, /* type-category (enum type) */
1230 : false, /* enum types are never preferred */
1231 : DEFAULT_TYPDELIM, /* array element delimiter */
1232 : F_ENUM_IN, /* input procedure */
1233 : F_ENUM_OUT, /* output procedure */
1234 : F_ENUM_RECV, /* receive procedure */
1235 : F_ENUM_SEND, /* send procedure */
1236 : InvalidOid, /* typmodin procedure - none */
1237 : InvalidOid, /* typmodout procedure - none */
1238 : InvalidOid, /* analyze procedure - default */
1239 : InvalidOid, /* subscript procedure - none */
1240 : InvalidOid, /* element type ID */
1241 : false, /* this is not an array type */
1242 : enumArrayOid, /* array type we are about to create */
1243 : InvalidOid, /* base type ID (only for domains) */
1244 : NULL, /* never a default type value */
1245 : NULL, /* binary default isn't sent either */
1246 : true, /* always passed by value */
1247 : TYPALIGN_INT, /* int alignment */
1248 : TYPSTORAGE_PLAIN, /* TOAST strategy always plain */
1249 : -1, /* typMod (Domains only) */
1250 : 0, /* Array dimensions of typbasetype */
1251 : false, /* Type NOT NULL */
1252 : InvalidOid); /* type's collation */
1253 :
1254 : /* Enter the enum's values into pg_enum */
1255 442 : EnumValuesCreate(enumTypeAddr.objectId, stmt->vals);
1256 :
1257 : /*
1258 : * Create the array type that goes with it.
1259 : */
1260 436 : enumArrayName = makeArrayTypeName(enumName, enumNamespace);
1261 :
1262 436 : TypeCreate(enumArrayOid, /* force assignment of this type OID */
1263 : enumArrayName, /* type name */
1264 : enumNamespace, /* namespace */
1265 : InvalidOid, /* relation oid (n/a here) */
1266 : 0, /* relation kind (ditto) */
1267 : GetUserId(), /* owner's ID */
1268 : -1, /* internal size (always varlena) */
1269 : TYPTYPE_BASE, /* type-type (base type) */
1270 : TYPCATEGORY_ARRAY, /* type-category (array) */
1271 : false, /* array types are never preferred */
1272 : DEFAULT_TYPDELIM, /* array element delimiter */
1273 : F_ARRAY_IN, /* input procedure */
1274 : F_ARRAY_OUT, /* output procedure */
1275 : F_ARRAY_RECV, /* receive procedure */
1276 : F_ARRAY_SEND, /* send procedure */
1277 : InvalidOid, /* typmodin procedure - none */
1278 : InvalidOid, /* typmodout procedure - none */
1279 : F_ARRAY_TYPANALYZE, /* analyze procedure */
1280 : F_ARRAY_SUBSCRIPT_HANDLER, /* array subscript procedure */
1281 : enumTypeAddr.objectId, /* element type ID */
1282 : true, /* yes this is an array type */
1283 : InvalidOid, /* no further array type */
1284 : InvalidOid, /* base type ID */
1285 : NULL, /* never a default type value */
1286 : NULL, /* binary default isn't sent either */
1287 : false, /* never passed by value */
1288 : TYPALIGN_INT, /* enums have int align, so do their arrays */
1289 : TYPSTORAGE_EXTENDED, /* ARRAY is always toastable */
1290 : -1, /* typMod (Domains only) */
1291 : 0, /* Array dimensions of typbasetype */
1292 : false, /* Type NOT NULL */
1293 : InvalidOid); /* type's collation */
1294 :
1295 436 : pfree(enumArrayName);
1296 :
1297 436 : return enumTypeAddr;
1298 : }
1299 :
1300 : /*
1301 : * AlterEnum
1302 : * Adds a new label to an existing enum.
1303 : */
1304 : ObjectAddress
1305 396 : AlterEnum(AlterEnumStmt *stmt)
1306 : {
1307 : Oid enum_type_oid;
1308 : TypeName *typename;
1309 : HeapTuple tup;
1310 : ObjectAddress address;
1311 :
1312 : /* Make a TypeName so we can use standard type lookup machinery */
1313 396 : typename = makeTypeNameFromNameList(stmt->typeName);
1314 396 : enum_type_oid = typenameTypeId(NULL, typename);
1315 :
1316 396 : tup = SearchSysCache1(TYPEOID, ObjectIdGetDatum(enum_type_oid));
1317 396 : if (!HeapTupleIsValid(tup))
1318 0 : elog(ERROR, "cache lookup failed for type %u", enum_type_oid);
1319 :
1320 : /* Check it's an enum and check user has permission to ALTER the enum */
1321 396 : checkEnumOwner(tup);
1322 :
1323 396 : ReleaseSysCache(tup);
1324 :
1325 396 : if (stmt->oldVal)
1326 : {
1327 : /* Rename an existing label */
1328 24 : RenameEnumLabel(enum_type_oid, stmt->oldVal, stmt->newVal);
1329 : }
1330 : else
1331 : {
1332 : /* Add a new label */
1333 372 : AddEnumLabel(enum_type_oid, stmt->newVal,
1334 372 : stmt->newValNeighbor, stmt->newValIsAfter,
1335 372 : stmt->skipIfNewValExists);
1336 : }
1337 :
1338 366 : InvokeObjectPostAlterHook(TypeRelationId, enum_type_oid, 0);
1339 :
1340 366 : ObjectAddressSet(address, TypeRelationId, enum_type_oid);
1341 :
1342 366 : return address;
1343 : }
1344 :
1345 :
1346 : /*
1347 : * checkEnumOwner
1348 : *
1349 : * Check that the type is actually an enum and that the current user
1350 : * has permission to do ALTER TYPE on it. Throw an error if not.
1351 : */
1352 : static void
1353 396 : checkEnumOwner(HeapTuple tup)
1354 : {
1355 396 : Form_pg_type typTup = (Form_pg_type) GETSTRUCT(tup);
1356 :
1357 : /* Check that this is actually an enum */
1358 396 : if (typTup->typtype != TYPTYPE_ENUM)
1359 0 : ereport(ERROR,
1360 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
1361 : errmsg("%s is not an enum",
1362 : format_type_be(typTup->oid))));
1363 :
1364 : /* Permission check: must own type */
1365 396 : if (!object_ownercheck(TypeRelationId, typTup->oid, GetUserId()))
1366 0 : aclcheck_error_type(ACLCHECK_NOT_OWNER, typTup->oid);
1367 396 : }
1368 :
1369 :
1370 : /*
1371 : * DefineRange
1372 : * Registers a new range type.
1373 : *
1374 : * Perhaps it might be worthwhile to set pg_type.typelem to the base type,
1375 : * and likewise on multiranges to set it to the range type. But having a
1376 : * non-zero typelem is treated elsewhere as a synonym for being an array,
1377 : * and users might have queries with that same assumption.
1378 : */
1379 : ObjectAddress
1380 184 : DefineRange(ParseState *pstate, CreateRangeStmt *stmt)
1381 : {
1382 : char *typeName;
1383 : Oid typeNamespace;
1384 : Oid typoid;
1385 : char *rangeArrayName;
1386 184 : char *multirangeTypeName = NULL;
1387 : char *multirangeArrayName;
1388 184 : Oid multirangeNamespace = InvalidOid;
1389 : Oid rangeArrayOid;
1390 : Oid multirangeOid;
1391 : Oid multirangeArrayOid;
1392 184 : Oid rangeSubtype = InvalidOid;
1393 184 : List *rangeSubOpclassName = NIL;
1394 184 : List *rangeCollationName = NIL;
1395 184 : List *rangeCanonicalName = NIL;
1396 184 : List *rangeSubtypeDiffName = NIL;
1397 : Oid rangeSubOpclass;
1398 : Oid rangeCollation;
1399 : regproc rangeCanonical;
1400 : regproc rangeSubtypeDiff;
1401 : int16 subtyplen;
1402 : bool subtypbyval;
1403 : char subtypalign;
1404 : char alignment;
1405 : AclResult aclresult;
1406 : ListCell *lc;
1407 : ObjectAddress address;
1408 : ObjectAddress mltrngaddress PG_USED_FOR_ASSERTS_ONLY;
1409 : Oid castFuncOid;
1410 :
1411 : /* Convert list of names to a name and namespace */
1412 184 : typeNamespace = QualifiedNameGetCreationNamespace(stmt->typeName,
1413 : &typeName);
1414 :
1415 : /* Check we have creation rights in target namespace */
1416 184 : aclresult = object_aclcheck(NamespaceRelationId, typeNamespace, GetUserId(), ACL_CREATE);
1417 184 : if (aclresult != ACLCHECK_OK)
1418 0 : aclcheck_error(aclresult, OBJECT_SCHEMA,
1419 0 : get_namespace_name(typeNamespace));
1420 :
1421 : /*
1422 : * Look to see if type already exists.
1423 : */
1424 184 : typoid = GetSysCacheOid2(TYPENAMENSP, Anum_pg_type_oid,
1425 : CStringGetDatum(typeName),
1426 : ObjectIdGetDatum(typeNamespace));
1427 :
1428 : /*
1429 : * If it's not a shell, see if it's an autogenerated array type, and if so
1430 : * rename it out of the way.
1431 : */
1432 184 : if (OidIsValid(typoid) && get_typisdefined(typoid))
1433 : {
1434 0 : if (moveArrayTypeName(typoid, typeName, typeNamespace))
1435 0 : typoid = InvalidOid;
1436 : else
1437 0 : ereport(ERROR,
1438 : (errcode(ERRCODE_DUPLICATE_OBJECT),
1439 : errmsg("type \"%s\" already exists", typeName)));
1440 : }
1441 :
1442 : /*
1443 : * Unlike DefineType(), we don't insist on a shell type existing first, as
1444 : * it's only needed if the user wants to specify a canonical function.
1445 : */
1446 :
1447 : /* Extract the parameters from the parameter list */
1448 496 : foreach(lc, stmt->params)
1449 : {
1450 312 : DefElem *defel = (DefElem *) lfirst(lc);
1451 :
1452 312 : if (strcmp(defel->defname, "subtype") == 0)
1453 : {
1454 184 : if (OidIsValid(rangeSubtype))
1455 0 : errorConflictingDefElem(defel, pstate);
1456 : /* we can look up the subtype name immediately */
1457 184 : rangeSubtype = typenameTypeId(NULL, defGetTypeName(defel));
1458 : }
1459 128 : else if (strcmp(defel->defname, "subtype_opclass") == 0)
1460 : {
1461 8 : if (rangeSubOpclassName != NIL)
1462 0 : errorConflictingDefElem(defel, pstate);
1463 8 : rangeSubOpclassName = defGetQualifiedName(defel);
1464 : }
1465 120 : else if (strcmp(defel->defname, "collation") == 0)
1466 : {
1467 70 : if (rangeCollationName != NIL)
1468 0 : errorConflictingDefElem(defel, pstate);
1469 70 : rangeCollationName = defGetQualifiedName(defel);
1470 : }
1471 50 : else if (strcmp(defel->defname, "canonical") == 0)
1472 : {
1473 0 : if (rangeCanonicalName != NIL)
1474 0 : errorConflictingDefElem(defel, pstate);
1475 0 : rangeCanonicalName = defGetQualifiedName(defel);
1476 : }
1477 50 : else if (strcmp(defel->defname, "subtype_diff") == 0)
1478 : {
1479 14 : if (rangeSubtypeDiffName != NIL)
1480 0 : errorConflictingDefElem(defel, pstate);
1481 14 : rangeSubtypeDiffName = defGetQualifiedName(defel);
1482 : }
1483 36 : else if (strcmp(defel->defname, "multirange_type_name") == 0)
1484 : {
1485 36 : if (multirangeTypeName != NULL)
1486 0 : errorConflictingDefElem(defel, pstate);
1487 : /* we can look up the subtype name immediately */
1488 36 : multirangeNamespace = QualifiedNameGetCreationNamespace(defGetQualifiedName(defel),
1489 : &multirangeTypeName);
1490 : }
1491 : else
1492 0 : ereport(ERROR,
1493 : (errcode(ERRCODE_SYNTAX_ERROR),
1494 : errmsg("type attribute \"%s\" not recognized",
1495 : defel->defname)));
1496 : }
1497 :
1498 : /* Must have a subtype */
1499 184 : if (!OidIsValid(rangeSubtype))
1500 0 : ereport(ERROR,
1501 : (errcode(ERRCODE_SYNTAX_ERROR),
1502 : errmsg("type attribute \"subtype\" is required")));
1503 : /* disallow ranges of pseudotypes */
1504 184 : if (get_typtype(rangeSubtype) == TYPTYPE_PSEUDO)
1505 0 : ereport(ERROR,
1506 : (errcode(ERRCODE_DATATYPE_MISMATCH),
1507 : errmsg("range subtype cannot be %s",
1508 : format_type_be(rangeSubtype))));
1509 :
1510 : /* Identify subopclass */
1511 184 : rangeSubOpclass = findRangeSubOpclass(rangeSubOpclassName, rangeSubtype);
1512 :
1513 : /* Identify collation to use, if any */
1514 184 : if (type_is_collatable(rangeSubtype))
1515 : {
1516 78 : if (rangeCollationName != NIL)
1517 70 : rangeCollation = get_collation_oid(rangeCollationName, false);
1518 : else
1519 8 : rangeCollation = get_typcollation(rangeSubtype);
1520 : }
1521 : else
1522 : {
1523 106 : if (rangeCollationName != NIL)
1524 0 : ereport(ERROR,
1525 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
1526 : errmsg("range collation specified but subtype does not support collation")));
1527 106 : rangeCollation = InvalidOid;
1528 : }
1529 :
1530 : /* Identify support functions, if provided */
1531 184 : if (rangeCanonicalName != NIL)
1532 : {
1533 0 : if (!OidIsValid(typoid))
1534 0 : ereport(ERROR,
1535 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
1536 : errmsg("cannot specify a canonical function without a pre-created shell type"),
1537 : errhint("Create the type as a shell type, then create its canonicalization function, then do a full CREATE TYPE.")));
1538 0 : rangeCanonical = findRangeCanonicalFunction(rangeCanonicalName,
1539 : typoid);
1540 : }
1541 : else
1542 184 : rangeCanonical = InvalidOid;
1543 :
1544 184 : if (rangeSubtypeDiffName != NIL)
1545 14 : rangeSubtypeDiff = findRangeSubtypeDiffFunction(rangeSubtypeDiffName,
1546 : rangeSubtype);
1547 : else
1548 170 : rangeSubtypeDiff = InvalidOid;
1549 :
1550 178 : get_typlenbyvalalign(rangeSubtype,
1551 : &subtyplen, &subtypbyval, &subtypalign);
1552 :
1553 : /* alignment must be TYPALIGN_INT or TYPALIGN_DOUBLE for ranges */
1554 178 : alignment = (subtypalign == TYPALIGN_DOUBLE) ? TYPALIGN_DOUBLE : TYPALIGN_INT;
1555 :
1556 : /* Allocate OID for array type, its multirange, and its multirange array */
1557 178 : rangeArrayOid = AssignTypeArrayOid();
1558 178 : multirangeOid = AssignTypeMultirangeOid();
1559 178 : multirangeArrayOid = AssignTypeMultirangeArrayOid();
1560 :
1561 : /* Create the pg_type entry */
1562 : address =
1563 178 : TypeCreate(InvalidOid, /* no predetermined type OID */
1564 : typeName, /* type name */
1565 : typeNamespace, /* namespace */
1566 : InvalidOid, /* relation oid (n/a here) */
1567 : 0, /* relation kind (ditto) */
1568 : GetUserId(), /* owner's ID */
1569 : -1, /* internal size (always varlena) */
1570 : TYPTYPE_RANGE, /* type-type (range type) */
1571 : TYPCATEGORY_RANGE, /* type-category (range type) */
1572 : false, /* range types are never preferred */
1573 : DEFAULT_TYPDELIM, /* array element delimiter */
1574 : F_RANGE_IN, /* input procedure */
1575 : F_RANGE_OUT, /* output procedure */
1576 : F_RANGE_RECV, /* receive procedure */
1577 : F_RANGE_SEND, /* send procedure */
1578 : InvalidOid, /* typmodin procedure - none */
1579 : InvalidOid, /* typmodout procedure - none */
1580 : F_RANGE_TYPANALYZE, /* analyze procedure */
1581 : InvalidOid, /* subscript procedure - none */
1582 : InvalidOid, /* element type ID - none */
1583 : false, /* this is not an array type */
1584 : rangeArrayOid, /* array type we are about to create */
1585 : InvalidOid, /* base type ID (only for domains) */
1586 : NULL, /* never a default type value */
1587 : NULL, /* no binary form available either */
1588 : false, /* never passed by value */
1589 : alignment, /* alignment */
1590 : TYPSTORAGE_EXTENDED, /* TOAST strategy (always extended) */
1591 : -1, /* typMod (Domains only) */
1592 : 0, /* Array dimensions of typbasetype */
1593 : false, /* Type NOT NULL */
1594 : InvalidOid); /* type's collation (ranges never have one) */
1595 : Assert(typoid == InvalidOid || typoid == address.objectId);
1596 178 : typoid = address.objectId;
1597 :
1598 : /* Create the multirange that goes with it */
1599 178 : if (multirangeTypeName)
1600 : {
1601 : Oid old_typoid;
1602 :
1603 : /*
1604 : * Look to see if multirange type already exists.
1605 : */
1606 36 : old_typoid = GetSysCacheOid2(TYPENAMENSP, Anum_pg_type_oid,
1607 : CStringGetDatum(multirangeTypeName),
1608 : ObjectIdGetDatum(multirangeNamespace));
1609 :
1610 : /*
1611 : * If it's not a shell, see if it's an autogenerated array type, and
1612 : * if so rename it out of the way.
1613 : */
1614 36 : if (OidIsValid(old_typoid) && get_typisdefined(old_typoid))
1615 : {
1616 12 : if (!moveArrayTypeName(old_typoid, multirangeTypeName, multirangeNamespace))
1617 6 : ereport(ERROR,
1618 : (errcode(ERRCODE_DUPLICATE_OBJECT),
1619 : errmsg("type \"%s\" already exists", multirangeTypeName)));
1620 : }
1621 : }
1622 : else
1623 : {
1624 : /* Generate multirange name automatically */
1625 142 : multirangeNamespace = typeNamespace;
1626 142 : multirangeTypeName = makeMultirangeTypeName(typeName, multirangeNamespace);
1627 : }
1628 :
1629 : mltrngaddress =
1630 160 : TypeCreate(multirangeOid, /* force assignment of this type OID */
1631 : multirangeTypeName, /* type name */
1632 : multirangeNamespace, /* namespace */
1633 : InvalidOid, /* relation oid (n/a here) */
1634 : 0, /* relation kind (ditto) */
1635 : GetUserId(), /* owner's ID */
1636 : -1, /* internal size (always varlena) */
1637 : TYPTYPE_MULTIRANGE, /* type-type (multirange type) */
1638 : TYPCATEGORY_RANGE, /* type-category (range type) */
1639 : false, /* multirange types are never preferred */
1640 : DEFAULT_TYPDELIM, /* array element delimiter */
1641 : F_MULTIRANGE_IN, /* input procedure */
1642 : F_MULTIRANGE_OUT, /* output procedure */
1643 : F_MULTIRANGE_RECV, /* receive procedure */
1644 : F_MULTIRANGE_SEND, /* send procedure */
1645 : InvalidOid, /* typmodin procedure - none */
1646 : InvalidOid, /* typmodout procedure - none */
1647 : F_MULTIRANGE_TYPANALYZE, /* analyze procedure */
1648 : InvalidOid, /* subscript procedure - none */
1649 : InvalidOid, /* element type ID - none */
1650 : false, /* this is not an array type */
1651 : multirangeArrayOid, /* array type we are about to create */
1652 : InvalidOid, /* base type ID (only for domains) */
1653 : NULL, /* never a default type value */
1654 : NULL, /* no binary form available either */
1655 : false, /* never passed by value */
1656 : alignment, /* alignment */
1657 : 'x', /* TOAST strategy (always extended) */
1658 : -1, /* typMod (Domains only) */
1659 : 0, /* Array dimensions of typbasetype */
1660 : false, /* Type NOT NULL */
1661 : InvalidOid); /* type's collation (ranges never have one) */
1662 : Assert(multirangeOid == mltrngaddress.objectId);
1663 :
1664 : /* Create the entry in pg_range */
1665 160 : RangeCreate(typoid, rangeSubtype, rangeCollation, rangeSubOpclass,
1666 : rangeCanonical, rangeSubtypeDiff, multirangeOid);
1667 :
1668 : /*
1669 : * Create the array type that goes with it.
1670 : */
1671 160 : rangeArrayName = makeArrayTypeName(typeName, typeNamespace);
1672 :
1673 160 : TypeCreate(rangeArrayOid, /* force assignment of this type OID */
1674 : rangeArrayName, /* type name */
1675 : typeNamespace, /* namespace */
1676 : InvalidOid, /* relation oid (n/a here) */
1677 : 0, /* relation kind (ditto) */
1678 : GetUserId(), /* owner's ID */
1679 : -1, /* internal size (always varlena) */
1680 : TYPTYPE_BASE, /* type-type (base type) */
1681 : TYPCATEGORY_ARRAY, /* type-category (array) */
1682 : false, /* array types are never preferred */
1683 : DEFAULT_TYPDELIM, /* array element delimiter */
1684 : F_ARRAY_IN, /* input procedure */
1685 : F_ARRAY_OUT, /* output procedure */
1686 : F_ARRAY_RECV, /* receive procedure */
1687 : F_ARRAY_SEND, /* send procedure */
1688 : InvalidOid, /* typmodin procedure - none */
1689 : InvalidOid, /* typmodout procedure - none */
1690 : F_ARRAY_TYPANALYZE, /* analyze procedure */
1691 : F_ARRAY_SUBSCRIPT_HANDLER, /* array subscript procedure */
1692 : typoid, /* element type ID */
1693 : true, /* yes this is an array type */
1694 : InvalidOid, /* no further array type */
1695 : InvalidOid, /* base type ID */
1696 : NULL, /* never a default type value */
1697 : NULL, /* binary default isn't sent either */
1698 : false, /* never passed by value */
1699 : alignment, /* alignment - same as range's */
1700 : TYPSTORAGE_EXTENDED, /* ARRAY is always toastable */
1701 : -1, /* typMod (Domains only) */
1702 : 0, /* Array dimensions of typbasetype */
1703 : false, /* Type NOT NULL */
1704 : InvalidOid); /* typcollation */
1705 :
1706 160 : pfree(rangeArrayName);
1707 :
1708 : /* Create the multirange's array type */
1709 :
1710 160 : multirangeArrayName = makeArrayTypeName(multirangeTypeName, typeNamespace);
1711 :
1712 160 : TypeCreate(multirangeArrayOid, /* force assignment of this type OID */
1713 : multirangeArrayName, /* type name */
1714 : multirangeNamespace, /* namespace */
1715 : InvalidOid, /* relation oid (n/a here) */
1716 : 0, /* relation kind (ditto) */
1717 : GetUserId(), /* owner's ID */
1718 : -1, /* internal size (always varlena) */
1719 : TYPTYPE_BASE, /* type-type (base type) */
1720 : TYPCATEGORY_ARRAY, /* type-category (array) */
1721 : false, /* array types are never preferred */
1722 : DEFAULT_TYPDELIM, /* array element delimiter */
1723 : F_ARRAY_IN, /* input procedure */
1724 : F_ARRAY_OUT, /* output procedure */
1725 : F_ARRAY_RECV, /* receive procedure */
1726 : F_ARRAY_SEND, /* send procedure */
1727 : InvalidOid, /* typmodin procedure - none */
1728 : InvalidOid, /* typmodout procedure - none */
1729 : F_ARRAY_TYPANALYZE, /* analyze procedure */
1730 : F_ARRAY_SUBSCRIPT_HANDLER, /* array subscript procedure */
1731 : multirangeOid, /* element type ID */
1732 : true, /* yes this is an array type */
1733 : InvalidOid, /* no further array type */
1734 : InvalidOid, /* base type ID */
1735 : NULL, /* never a default type value */
1736 : NULL, /* binary default isn't sent either */
1737 : false, /* never passed by value */
1738 : alignment, /* alignment - same as range's */
1739 : 'x', /* ARRAY is always toastable */
1740 : -1, /* typMod (Domains only) */
1741 : 0, /* Array dimensions of typbasetype */
1742 : false, /* Type NOT NULL */
1743 : InvalidOid); /* typcollation */
1744 :
1745 : /* Ensure these new types are visible to ProcedureCreate */
1746 160 : CommandCounterIncrement();
1747 :
1748 : /* And create the constructor functions for this range type */
1749 160 : makeRangeConstructors(typeName, typeNamespace, typoid, rangeSubtype);
1750 160 : makeMultirangeConstructors(multirangeTypeName, typeNamespace,
1751 : multirangeOid, typoid, rangeArrayOid,
1752 : &castFuncOid);
1753 :
1754 : /* Create cast from the range type to its multirange type */
1755 160 : CastCreate(typoid, multirangeOid, castFuncOid, InvalidOid, InvalidOid,
1756 : COERCION_CODE_EXPLICIT, COERCION_METHOD_FUNCTION,
1757 : DEPENDENCY_INTERNAL);
1758 :
1759 160 : pfree(multirangeArrayName);
1760 :
1761 160 : return address;
1762 : }
1763 :
1764 : /*
1765 : * Because there may exist several range types over the same subtype, the
1766 : * range type can't be uniquely determined from the subtype. So it's
1767 : * impossible to define a polymorphic constructor; we have to generate new
1768 : * constructor functions explicitly for each range type.
1769 : *
1770 : * We actually define 4 functions, with 0 through 3 arguments. This is just
1771 : * to offer more convenience for the user.
1772 : */
1773 : static void
1774 160 : makeRangeConstructors(const char *name, Oid namespace,
1775 : Oid rangeOid, Oid subtype)
1776 : {
1777 : static const char *const prosrc[2] = {"range_constructor2",
1778 : "range_constructor3"};
1779 : static const int pronargs[2] = {2, 3};
1780 :
1781 : Oid constructorArgTypes[3];
1782 : ObjectAddress myself,
1783 : referenced;
1784 : int i;
1785 :
1786 160 : constructorArgTypes[0] = subtype;
1787 160 : constructorArgTypes[1] = subtype;
1788 160 : constructorArgTypes[2] = TEXTOID;
1789 :
1790 160 : referenced.classId = TypeRelationId;
1791 160 : referenced.objectId = rangeOid;
1792 160 : referenced.objectSubId = 0;
1793 :
1794 480 : for (i = 0; i < lengthof(prosrc); i++)
1795 : {
1796 : oidvector *constructorArgTypesVector;
1797 :
1798 320 : constructorArgTypesVector = buildoidvector(constructorArgTypes,
1799 320 : pronargs[i]);
1800 :
1801 320 : myself = ProcedureCreate(name, /* name: same as range type */
1802 : namespace, /* namespace */
1803 : false, /* replace */
1804 : false, /* returns set */
1805 : rangeOid, /* return type */
1806 : BOOTSTRAP_SUPERUSERID, /* proowner */
1807 : INTERNALlanguageId, /* language */
1808 : F_FMGR_INTERNAL_VALIDATOR, /* language validator */
1809 320 : prosrc[i], /* prosrc */
1810 : NULL, /* probin */
1811 : NULL, /* prosqlbody */
1812 : PROKIND_FUNCTION,
1813 : false, /* security_definer */
1814 : false, /* leakproof */
1815 : false, /* isStrict */
1816 : PROVOLATILE_IMMUTABLE, /* volatility */
1817 : PROPARALLEL_SAFE, /* parallel safety */
1818 : constructorArgTypesVector, /* parameterTypes */
1819 : PointerGetDatum(NULL), /* allParameterTypes */
1820 : PointerGetDatum(NULL), /* parameterModes */
1821 : PointerGetDatum(NULL), /* parameterNames */
1822 : NIL, /* parameterDefaults */
1823 : PointerGetDatum(NULL), /* trftypes */
1824 : NIL, /* trfoids */
1825 : PointerGetDatum(NULL), /* proconfig */
1826 : InvalidOid, /* prosupport */
1827 : 1.0, /* procost */
1828 : 0.0); /* prorows */
1829 :
1830 : /*
1831 : * Make the constructors internally-dependent on the range type so
1832 : * that they go away silently when the type is dropped. Note that
1833 : * pg_dump depends on this choice to avoid dumping the constructors.
1834 : */
1835 320 : recordDependencyOn(&myself, &referenced, DEPENDENCY_INTERNAL);
1836 : }
1837 160 : }
1838 :
1839 : /*
1840 : * We make a separate multirange constructor for each range type
1841 : * so its name can include the base type, like range constructors do.
1842 : * If we had an anyrangearray polymorphic type we could use it here,
1843 : * but since each type has its own constructor name there's no need.
1844 : *
1845 : * Sets castFuncOid to the oid of the new constructor that can be used
1846 : * to cast from a range to a multirange.
1847 : */
1848 : static void
1849 160 : makeMultirangeConstructors(const char *name, Oid namespace,
1850 : Oid multirangeOid, Oid rangeOid, Oid rangeArrayOid,
1851 : Oid *castFuncOid)
1852 : {
1853 : ObjectAddress myself,
1854 : referenced;
1855 : oidvector *argtypes;
1856 : Datum allParamTypes;
1857 : ArrayType *allParameterTypes;
1858 : Datum paramModes;
1859 : ArrayType *parameterModes;
1860 :
1861 160 : referenced.classId = TypeRelationId;
1862 160 : referenced.objectId = multirangeOid;
1863 160 : referenced.objectSubId = 0;
1864 :
1865 : /* 0-arg constructor - for empty multiranges */
1866 160 : argtypes = buildoidvector(NULL, 0);
1867 160 : myself = ProcedureCreate(name, /* name: same as multirange type */
1868 : namespace,
1869 : false, /* replace */
1870 : false, /* returns set */
1871 : multirangeOid, /* return type */
1872 : BOOTSTRAP_SUPERUSERID, /* proowner */
1873 : INTERNALlanguageId, /* language */
1874 : F_FMGR_INTERNAL_VALIDATOR,
1875 : "multirange_constructor0", /* prosrc */
1876 : NULL, /* probin */
1877 : NULL, /* prosqlbody */
1878 : PROKIND_FUNCTION,
1879 : false, /* security_definer */
1880 : false, /* leakproof */
1881 : true, /* isStrict */
1882 : PROVOLATILE_IMMUTABLE, /* volatility */
1883 : PROPARALLEL_SAFE, /* parallel safety */
1884 : argtypes, /* parameterTypes */
1885 : PointerGetDatum(NULL), /* allParameterTypes */
1886 : PointerGetDatum(NULL), /* parameterModes */
1887 : PointerGetDatum(NULL), /* parameterNames */
1888 : NIL, /* parameterDefaults */
1889 : PointerGetDatum(NULL), /* trftypes */
1890 : NIL, /* trfoids */
1891 : PointerGetDatum(NULL), /* proconfig */
1892 : InvalidOid, /* prosupport */
1893 : 1.0, /* procost */
1894 : 0.0); /* prorows */
1895 :
1896 : /*
1897 : * Make the constructor internally-dependent on the multirange type so
1898 : * that they go away silently when the type is dropped. Note that pg_dump
1899 : * depends on this choice to avoid dumping the constructors.
1900 : */
1901 160 : recordDependencyOn(&myself, &referenced, DEPENDENCY_INTERNAL);
1902 160 : pfree(argtypes);
1903 :
1904 : /*
1905 : * 1-arg constructor - for casts
1906 : *
1907 : * In theory we shouldn't need both this and the vararg (n-arg)
1908 : * constructor, but having a separate 1-arg function lets us define casts
1909 : * against it.
1910 : */
1911 160 : argtypes = buildoidvector(&rangeOid, 1);
1912 160 : myself = ProcedureCreate(name, /* name: same as multirange type */
1913 : namespace,
1914 : false, /* replace */
1915 : false, /* returns set */
1916 : multirangeOid, /* return type */
1917 : BOOTSTRAP_SUPERUSERID, /* proowner */
1918 : INTERNALlanguageId, /* language */
1919 : F_FMGR_INTERNAL_VALIDATOR,
1920 : "multirange_constructor1", /* prosrc */
1921 : NULL, /* probin */
1922 : NULL, /* prosqlbody */
1923 : PROKIND_FUNCTION,
1924 : false, /* security_definer */
1925 : false, /* leakproof */
1926 : true, /* isStrict */
1927 : PROVOLATILE_IMMUTABLE, /* volatility */
1928 : PROPARALLEL_SAFE, /* parallel safety */
1929 : argtypes, /* parameterTypes */
1930 : PointerGetDatum(NULL), /* allParameterTypes */
1931 : PointerGetDatum(NULL), /* parameterModes */
1932 : PointerGetDatum(NULL), /* parameterNames */
1933 : NIL, /* parameterDefaults */
1934 : PointerGetDatum(NULL), /* trftypes */
1935 : NIL, /* trfoids */
1936 : PointerGetDatum(NULL), /* proconfig */
1937 : InvalidOid, /* prosupport */
1938 : 1.0, /* procost */
1939 : 0.0); /* prorows */
1940 : /* ditto */
1941 160 : recordDependencyOn(&myself, &referenced, DEPENDENCY_INTERNAL);
1942 160 : pfree(argtypes);
1943 160 : *castFuncOid = myself.objectId;
1944 :
1945 : /* n-arg constructor - vararg */
1946 160 : argtypes = buildoidvector(&rangeArrayOid, 1);
1947 160 : allParamTypes = ObjectIdGetDatum(rangeArrayOid);
1948 160 : allParameterTypes = construct_array_builtin(&allParamTypes, 1, OIDOID);
1949 160 : paramModes = CharGetDatum(FUNC_PARAM_VARIADIC);
1950 160 : parameterModes = construct_array_builtin(¶mModes, 1, CHAROID);
1951 160 : myself = ProcedureCreate(name, /* name: same as multirange type */
1952 : namespace,
1953 : false, /* replace */
1954 : false, /* returns set */
1955 : multirangeOid, /* return type */
1956 : BOOTSTRAP_SUPERUSERID, /* proowner */
1957 : INTERNALlanguageId, /* language */
1958 : F_FMGR_INTERNAL_VALIDATOR,
1959 : "multirange_constructor2", /* prosrc */
1960 : NULL, /* probin */
1961 : NULL, /* prosqlbody */
1962 : PROKIND_FUNCTION,
1963 : false, /* security_definer */
1964 : false, /* leakproof */
1965 : true, /* isStrict */
1966 : PROVOLATILE_IMMUTABLE, /* volatility */
1967 : PROPARALLEL_SAFE, /* parallel safety */
1968 : argtypes, /* parameterTypes */
1969 : PointerGetDatum(allParameterTypes), /* allParameterTypes */
1970 : PointerGetDatum(parameterModes), /* parameterModes */
1971 : PointerGetDatum(NULL), /* parameterNames */
1972 : NIL, /* parameterDefaults */
1973 : PointerGetDatum(NULL), /* trftypes */
1974 : NIL, /* trfoids */
1975 : PointerGetDatum(NULL), /* proconfig */
1976 : InvalidOid, /* prosupport */
1977 : 1.0, /* procost */
1978 : 0.0); /* prorows */
1979 : /* ditto */
1980 160 : recordDependencyOn(&myself, &referenced, DEPENDENCY_INTERNAL);
1981 160 : pfree(argtypes);
1982 160 : pfree(allParameterTypes);
1983 160 : pfree(parameterModes);
1984 160 : }
1985 :
1986 : /*
1987 : * Find suitable I/O and other support functions for a type.
1988 : *
1989 : * typeOid is the type's OID (which will already exist, if only as a shell
1990 : * type).
1991 : */
1992 :
1993 : static Oid
1994 222 : findTypeInputFunction(List *procname, Oid typeOid)
1995 : {
1996 : Oid argList[3];
1997 : Oid procOid;
1998 : Oid procOid2;
1999 :
2000 : /*
2001 : * Input functions can take a single argument of type CSTRING, or three
2002 : * arguments (string, typioparam OID, typmod). Whine about ambiguity if
2003 : * both forms exist.
2004 : */
2005 222 : argList[0] = CSTRINGOID;
2006 222 : argList[1] = OIDOID;
2007 222 : argList[2] = INT4OID;
2008 :
2009 222 : procOid = LookupFuncName(procname, 1, argList, true);
2010 222 : procOid2 = LookupFuncName(procname, 3, argList, true);
2011 222 : if (OidIsValid(procOid))
2012 : {
2013 206 : if (OidIsValid(procOid2))
2014 0 : ereport(ERROR,
2015 : (errcode(ERRCODE_AMBIGUOUS_FUNCTION),
2016 : errmsg("type input function %s has multiple matches",
2017 : NameListToString(procname))));
2018 : }
2019 : else
2020 : {
2021 16 : procOid = procOid2;
2022 : /* If not found, reference the 1-argument signature in error msg */
2023 16 : if (!OidIsValid(procOid))
2024 0 : ereport(ERROR,
2025 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
2026 : errmsg("function %s does not exist",
2027 : func_signature_string(procname, 1, NIL, argList))));
2028 : }
2029 :
2030 : /* Input functions must return the target type. */
2031 222 : if (get_func_rettype(procOid) != typeOid)
2032 6 : ereport(ERROR,
2033 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2034 : errmsg("type input function %s must return type %s",
2035 : NameListToString(procname), format_type_be(typeOid))));
2036 :
2037 : /*
2038 : * Print warnings if any of the type's I/O functions are marked volatile.
2039 : * There is a general assumption that I/O functions are stable or
2040 : * immutable; this allows us for example to mark record_in/record_out
2041 : * stable rather than volatile. Ideally we would throw errors not just
2042 : * warnings here; but since this check is new as of 9.5, and since the
2043 : * volatility marking might be just an error-of-omission and not a true
2044 : * indication of how the function behaves, we'll let it pass as a warning
2045 : * for now.
2046 : */
2047 216 : if (func_volatile(procOid) == PROVOLATILE_VOLATILE)
2048 0 : ereport(WARNING,
2049 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2050 : errmsg("type input function %s should not be volatile",
2051 : NameListToString(procname))));
2052 :
2053 216 : return procOid;
2054 : }
2055 :
2056 : static Oid
2057 216 : findTypeOutputFunction(List *procname, Oid typeOid)
2058 : {
2059 : Oid argList[1];
2060 : Oid procOid;
2061 :
2062 : /*
2063 : * Output functions always take a single argument of the type and return
2064 : * cstring.
2065 : */
2066 216 : argList[0] = typeOid;
2067 :
2068 216 : procOid = LookupFuncName(procname, 1, argList, true);
2069 216 : if (!OidIsValid(procOid))
2070 0 : ereport(ERROR,
2071 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
2072 : errmsg("function %s does not exist",
2073 : func_signature_string(procname, 1, NIL, argList))));
2074 :
2075 216 : if (get_func_rettype(procOid) != CSTRINGOID)
2076 0 : ereport(ERROR,
2077 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2078 : errmsg("type output function %s must return type %s",
2079 : NameListToString(procname), "cstring")));
2080 :
2081 : /* Just a warning for now, per comments in findTypeInputFunction */
2082 216 : if (func_volatile(procOid) == PROVOLATILE_VOLATILE)
2083 0 : ereport(WARNING,
2084 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2085 : errmsg("type output function %s should not be volatile",
2086 : NameListToString(procname))));
2087 :
2088 216 : return procOid;
2089 : }
2090 :
2091 : static Oid
2092 46 : findTypeReceiveFunction(List *procname, Oid typeOid)
2093 : {
2094 : Oid argList[3];
2095 : Oid procOid;
2096 : Oid procOid2;
2097 :
2098 : /*
2099 : * Receive functions can take a single argument of type INTERNAL, or three
2100 : * arguments (internal, typioparam OID, typmod). Whine about ambiguity if
2101 : * both forms exist.
2102 : */
2103 46 : argList[0] = INTERNALOID;
2104 46 : argList[1] = OIDOID;
2105 46 : argList[2] = INT4OID;
2106 :
2107 46 : procOid = LookupFuncName(procname, 1, argList, true);
2108 46 : procOid2 = LookupFuncName(procname, 3, argList, true);
2109 46 : if (OidIsValid(procOid))
2110 : {
2111 36 : if (OidIsValid(procOid2))
2112 0 : ereport(ERROR,
2113 : (errcode(ERRCODE_AMBIGUOUS_FUNCTION),
2114 : errmsg("type receive function %s has multiple matches",
2115 : NameListToString(procname))));
2116 : }
2117 : else
2118 : {
2119 10 : procOid = procOid2;
2120 : /* If not found, reference the 1-argument signature in error msg */
2121 10 : if (!OidIsValid(procOid))
2122 0 : ereport(ERROR,
2123 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
2124 : errmsg("function %s does not exist",
2125 : func_signature_string(procname, 1, NIL, argList))));
2126 : }
2127 :
2128 : /* Receive functions must return the target type. */
2129 46 : if (get_func_rettype(procOid) != typeOid)
2130 0 : ereport(ERROR,
2131 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2132 : errmsg("type receive function %s must return type %s",
2133 : NameListToString(procname), format_type_be(typeOid))));
2134 :
2135 : /* Just a warning for now, per comments in findTypeInputFunction */
2136 46 : if (func_volatile(procOid) == PROVOLATILE_VOLATILE)
2137 0 : ereport(WARNING,
2138 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2139 : errmsg("type receive function %s should not be volatile",
2140 : NameListToString(procname))));
2141 :
2142 46 : return procOid;
2143 : }
2144 :
2145 : static Oid
2146 46 : findTypeSendFunction(List *procname, Oid typeOid)
2147 : {
2148 : Oid argList[1];
2149 : Oid procOid;
2150 :
2151 : /*
2152 : * Send functions always take a single argument of the type and return
2153 : * bytea.
2154 : */
2155 46 : argList[0] = typeOid;
2156 :
2157 46 : procOid = LookupFuncName(procname, 1, argList, true);
2158 46 : if (!OidIsValid(procOid))
2159 0 : ereport(ERROR,
2160 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
2161 : errmsg("function %s does not exist",
2162 : func_signature_string(procname, 1, NIL, argList))));
2163 :
2164 46 : if (get_func_rettype(procOid) != BYTEAOID)
2165 0 : ereport(ERROR,
2166 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2167 : errmsg("type send function %s must return type %s",
2168 : NameListToString(procname), "bytea")));
2169 :
2170 : /* Just a warning for now, per comments in findTypeInputFunction */
2171 46 : if (func_volatile(procOid) == PROVOLATILE_VOLATILE)
2172 0 : ereport(WARNING,
2173 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2174 : errmsg("type send function %s should not be volatile",
2175 : NameListToString(procname))));
2176 :
2177 46 : return procOid;
2178 : }
2179 :
2180 : static Oid
2181 14 : findTypeTypmodinFunction(List *procname)
2182 : {
2183 : Oid argList[1];
2184 : Oid procOid;
2185 :
2186 : /*
2187 : * typmodin functions always take one cstring[] argument and return int4.
2188 : */
2189 14 : argList[0] = CSTRINGARRAYOID;
2190 :
2191 14 : procOid = LookupFuncName(procname, 1, argList, true);
2192 14 : if (!OidIsValid(procOid))
2193 0 : ereport(ERROR,
2194 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
2195 : errmsg("function %s does not exist",
2196 : func_signature_string(procname, 1, NIL, argList))));
2197 :
2198 14 : if (get_func_rettype(procOid) != INT4OID)
2199 0 : ereport(ERROR,
2200 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2201 : errmsg("typmod_in function %s must return type %s",
2202 : NameListToString(procname), "integer")));
2203 :
2204 : /* Just a warning for now, per comments in findTypeInputFunction */
2205 14 : if (func_volatile(procOid) == PROVOLATILE_VOLATILE)
2206 0 : ereport(WARNING,
2207 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2208 : errmsg("type modifier input function %s should not be volatile",
2209 : NameListToString(procname))));
2210 :
2211 14 : return procOid;
2212 : }
2213 :
2214 : static Oid
2215 14 : findTypeTypmodoutFunction(List *procname)
2216 : {
2217 : Oid argList[1];
2218 : Oid procOid;
2219 :
2220 : /*
2221 : * typmodout functions always take one int4 argument and return cstring.
2222 : */
2223 14 : argList[0] = INT4OID;
2224 :
2225 14 : procOid = LookupFuncName(procname, 1, argList, true);
2226 14 : if (!OidIsValid(procOid))
2227 0 : ereport(ERROR,
2228 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
2229 : errmsg("function %s does not exist",
2230 : func_signature_string(procname, 1, NIL, argList))));
2231 :
2232 14 : if (get_func_rettype(procOid) != CSTRINGOID)
2233 0 : ereport(ERROR,
2234 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2235 : errmsg("typmod_out function %s must return type %s",
2236 : NameListToString(procname), "cstring")));
2237 :
2238 : /* Just a warning for now, per comments in findTypeInputFunction */
2239 14 : if (func_volatile(procOid) == PROVOLATILE_VOLATILE)
2240 0 : ereport(WARNING,
2241 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2242 : errmsg("type modifier output function %s should not be volatile",
2243 : NameListToString(procname))));
2244 :
2245 14 : return procOid;
2246 : }
2247 :
2248 : static Oid
2249 6 : findTypeAnalyzeFunction(List *procname, Oid typeOid)
2250 : {
2251 : Oid argList[1];
2252 : Oid procOid;
2253 :
2254 : /*
2255 : * Analyze functions always take one INTERNAL argument and return bool.
2256 : */
2257 6 : argList[0] = INTERNALOID;
2258 :
2259 6 : procOid = LookupFuncName(procname, 1, argList, true);
2260 6 : if (!OidIsValid(procOid))
2261 0 : ereport(ERROR,
2262 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
2263 : errmsg("function %s does not exist",
2264 : func_signature_string(procname, 1, NIL, argList))));
2265 :
2266 6 : if (get_func_rettype(procOid) != BOOLOID)
2267 0 : ereport(ERROR,
2268 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2269 : errmsg("type analyze function %s must return type %s",
2270 : NameListToString(procname), "boolean")));
2271 :
2272 6 : return procOid;
2273 : }
2274 :
2275 : static Oid
2276 22 : findTypeSubscriptingFunction(List *procname, Oid typeOid)
2277 : {
2278 : Oid argList[1];
2279 : Oid procOid;
2280 :
2281 : /*
2282 : * Subscripting support functions always take one INTERNAL argument and
2283 : * return INTERNAL. (The argument is not used, but we must have it to
2284 : * maintain type safety.)
2285 : */
2286 22 : argList[0] = INTERNALOID;
2287 :
2288 22 : procOid = LookupFuncName(procname, 1, argList, true);
2289 22 : if (!OidIsValid(procOid))
2290 0 : ereport(ERROR,
2291 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
2292 : errmsg("function %s does not exist",
2293 : func_signature_string(procname, 1, NIL, argList))));
2294 :
2295 22 : if (get_func_rettype(procOid) != INTERNALOID)
2296 0 : ereport(ERROR,
2297 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2298 : errmsg("type subscripting function %s must return type %s",
2299 : NameListToString(procname), "internal")));
2300 :
2301 : /*
2302 : * We disallow array_subscript_handler() from being selected explicitly,
2303 : * since that must only be applied to autogenerated array types.
2304 : */
2305 22 : if (procOid == F_ARRAY_SUBSCRIPT_HANDLER)
2306 0 : ereport(ERROR,
2307 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2308 : errmsg("user-defined types cannot use subscripting function %s",
2309 : NameListToString(procname))));
2310 :
2311 22 : return procOid;
2312 : }
2313 :
2314 : /*
2315 : * Find suitable support functions and opclasses for a range type.
2316 : */
2317 :
2318 : /*
2319 : * Find named btree opclass for subtype, or default btree opclass if
2320 : * opcname is NIL.
2321 : */
2322 : static Oid
2323 184 : findRangeSubOpclass(List *opcname, Oid subtype)
2324 : {
2325 : Oid opcid;
2326 : Oid opInputType;
2327 :
2328 184 : if (opcname != NIL)
2329 : {
2330 8 : opcid = get_opclass_oid(BTREE_AM_OID, opcname, false);
2331 :
2332 : /*
2333 : * Verify that the operator class accepts this datatype. Note we will
2334 : * accept binary compatibility.
2335 : */
2336 8 : opInputType = get_opclass_input_type(opcid);
2337 8 : if (!IsBinaryCoercible(subtype, opInputType))
2338 0 : ereport(ERROR,
2339 : (errcode(ERRCODE_DATATYPE_MISMATCH),
2340 : errmsg("operator class \"%s\" does not accept data type %s",
2341 : NameListToString(opcname),
2342 : format_type_be(subtype))));
2343 : }
2344 : else
2345 : {
2346 176 : opcid = GetDefaultOpClass(subtype, BTREE_AM_OID);
2347 176 : if (!OidIsValid(opcid))
2348 : {
2349 : /* We spell the error message identically to ResolveOpClass */
2350 0 : ereport(ERROR,
2351 : (errcode(ERRCODE_UNDEFINED_OBJECT),
2352 : errmsg("data type %s has no default operator class for access method \"%s\"",
2353 : format_type_be(subtype), "btree"),
2354 : errhint("You must specify an operator class for the range type or define a default operator class for the subtype.")));
2355 : }
2356 : }
2357 :
2358 184 : return opcid;
2359 : }
2360 :
2361 : static Oid
2362 0 : findRangeCanonicalFunction(List *procname, Oid typeOid)
2363 : {
2364 : Oid argList[1];
2365 : Oid procOid;
2366 : AclResult aclresult;
2367 :
2368 : /*
2369 : * Range canonical functions must take and return the range type, and must
2370 : * be immutable.
2371 : */
2372 0 : argList[0] = typeOid;
2373 :
2374 0 : procOid = LookupFuncName(procname, 1, argList, true);
2375 :
2376 0 : if (!OidIsValid(procOid))
2377 0 : ereport(ERROR,
2378 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
2379 : errmsg("function %s does not exist",
2380 : func_signature_string(procname, 1, NIL, argList))));
2381 :
2382 0 : if (get_func_rettype(procOid) != typeOid)
2383 0 : ereport(ERROR,
2384 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2385 : errmsg("range canonical function %s must return range type",
2386 : func_signature_string(procname, 1, NIL, argList))));
2387 :
2388 0 : if (func_volatile(procOid) != PROVOLATILE_IMMUTABLE)
2389 0 : ereport(ERROR,
2390 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2391 : errmsg("range canonical function %s must be immutable",
2392 : func_signature_string(procname, 1, NIL, argList))));
2393 :
2394 : /* Also, range type's creator must have permission to call function */
2395 0 : aclresult = object_aclcheck(ProcedureRelationId, procOid, GetUserId(), ACL_EXECUTE);
2396 0 : if (aclresult != ACLCHECK_OK)
2397 0 : aclcheck_error(aclresult, OBJECT_FUNCTION, get_func_name(procOid));
2398 :
2399 0 : return procOid;
2400 : }
2401 :
2402 : static Oid
2403 14 : findRangeSubtypeDiffFunction(List *procname, Oid subtype)
2404 : {
2405 : Oid argList[2];
2406 : Oid procOid;
2407 : AclResult aclresult;
2408 :
2409 : /*
2410 : * Range subtype diff functions must take two arguments of the subtype,
2411 : * must return float8, and must be immutable.
2412 : */
2413 14 : argList[0] = subtype;
2414 14 : argList[1] = subtype;
2415 :
2416 14 : procOid = LookupFuncName(procname, 2, argList, true);
2417 :
2418 14 : if (!OidIsValid(procOid))
2419 6 : ereport(ERROR,
2420 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
2421 : errmsg("function %s does not exist",
2422 : func_signature_string(procname, 2, NIL, argList))));
2423 :
2424 8 : if (get_func_rettype(procOid) != FLOAT8OID)
2425 0 : ereport(ERROR,
2426 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2427 : errmsg("range subtype diff function %s must return type %s",
2428 : func_signature_string(procname, 2, NIL, argList),
2429 : "double precision")));
2430 :
2431 8 : if (func_volatile(procOid) != PROVOLATILE_IMMUTABLE)
2432 0 : ereport(ERROR,
2433 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2434 : errmsg("range subtype diff function %s must be immutable",
2435 : func_signature_string(procname, 2, NIL, argList))));
2436 :
2437 : /* Also, range type's creator must have permission to call function */
2438 8 : aclresult = object_aclcheck(ProcedureRelationId, procOid, GetUserId(), ACL_EXECUTE);
2439 8 : if (aclresult != ACLCHECK_OK)
2440 0 : aclcheck_error(aclresult, OBJECT_FUNCTION, get_func_name(procOid));
2441 :
2442 8 : return procOid;
2443 : }
2444 :
2445 : /*
2446 : * AssignTypeArrayOid
2447 : *
2448 : * Pre-assign the type's array OID for use in pg_type.typarray
2449 : */
2450 : Oid
2451 72062 : AssignTypeArrayOid(void)
2452 : {
2453 : Oid type_array_oid;
2454 :
2455 : /* Use binary-upgrade override for pg_type.typarray? */
2456 72062 : if (IsBinaryUpgrade)
2457 : {
2458 1732 : if (!OidIsValid(binary_upgrade_next_array_pg_type_oid))
2459 0 : ereport(ERROR,
2460 : (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
2461 : errmsg("pg_type array OID value not set when in binary upgrade mode")));
2462 :
2463 1732 : type_array_oid = binary_upgrade_next_array_pg_type_oid;
2464 1732 : binary_upgrade_next_array_pg_type_oid = InvalidOid;
2465 : }
2466 : else
2467 : {
2468 70330 : Relation pg_type = table_open(TypeRelationId, AccessShareLock);
2469 :
2470 70330 : type_array_oid = GetNewOidWithIndex(pg_type, TypeOidIndexId,
2471 : Anum_pg_type_oid);
2472 70330 : table_close(pg_type, AccessShareLock);
2473 : }
2474 :
2475 72062 : return type_array_oid;
2476 : }
2477 :
2478 : /*
2479 : * AssignTypeMultirangeOid
2480 : *
2481 : * Pre-assign the range type's multirange OID for use in pg_type.oid
2482 : */
2483 : Oid
2484 178 : AssignTypeMultirangeOid(void)
2485 : {
2486 : Oid type_multirange_oid;
2487 :
2488 : /* Use binary-upgrade override for pg_type.oid? */
2489 178 : if (IsBinaryUpgrade)
2490 : {
2491 12 : if (!OidIsValid(binary_upgrade_next_mrng_pg_type_oid))
2492 0 : ereport(ERROR,
2493 : (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
2494 : errmsg("pg_type multirange OID value not set when in binary upgrade mode")));
2495 :
2496 12 : type_multirange_oid = binary_upgrade_next_mrng_pg_type_oid;
2497 12 : binary_upgrade_next_mrng_pg_type_oid = InvalidOid;
2498 : }
2499 : else
2500 : {
2501 166 : Relation pg_type = table_open(TypeRelationId, AccessShareLock);
2502 :
2503 166 : type_multirange_oid = GetNewOidWithIndex(pg_type, TypeOidIndexId,
2504 : Anum_pg_type_oid);
2505 166 : table_close(pg_type, AccessShareLock);
2506 : }
2507 :
2508 178 : return type_multirange_oid;
2509 : }
2510 :
2511 : /*
2512 : * AssignTypeMultirangeArrayOid
2513 : *
2514 : * Pre-assign the range type's multirange array OID for use in pg_type.typarray
2515 : */
2516 : Oid
2517 178 : AssignTypeMultirangeArrayOid(void)
2518 : {
2519 : Oid type_multirange_array_oid;
2520 :
2521 : /* Use binary-upgrade override for pg_type.oid? */
2522 178 : if (IsBinaryUpgrade)
2523 : {
2524 12 : if (!OidIsValid(binary_upgrade_next_mrng_array_pg_type_oid))
2525 0 : ereport(ERROR,
2526 : (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
2527 : errmsg("pg_type multirange array OID value not set when in binary upgrade mode")));
2528 :
2529 12 : type_multirange_array_oid = binary_upgrade_next_mrng_array_pg_type_oid;
2530 12 : binary_upgrade_next_mrng_array_pg_type_oid = InvalidOid;
2531 : }
2532 : else
2533 : {
2534 166 : Relation pg_type = table_open(TypeRelationId, AccessShareLock);
2535 :
2536 166 : type_multirange_array_oid = GetNewOidWithIndex(pg_type, TypeOidIndexId,
2537 : Anum_pg_type_oid);
2538 166 : table_close(pg_type, AccessShareLock);
2539 : }
2540 :
2541 178 : return type_multirange_array_oid;
2542 : }
2543 :
2544 :
2545 : /*-------------------------------------------------------------------
2546 : * DefineCompositeType
2547 : *
2548 : * Create a Composite Type relation.
2549 : * `DefineRelation' does all the work, we just provide the correct
2550 : * arguments!
2551 : *
2552 : * If the relation already exists, then 'DefineRelation' will abort
2553 : * the xact...
2554 : *
2555 : * Return type is the new type's object address.
2556 : *-------------------------------------------------------------------
2557 : */
2558 : ObjectAddress
2559 4502 : DefineCompositeType(RangeVar *typevar, List *coldeflist)
2560 : {
2561 4502 : CreateStmt *createStmt = makeNode(CreateStmt);
2562 : Oid old_type_oid;
2563 : Oid typeNamespace;
2564 : ObjectAddress address;
2565 :
2566 : /*
2567 : * now set the parameters for keys/inheritance etc. All of these are
2568 : * uninteresting for composite types...
2569 : */
2570 4502 : createStmt->relation = typevar;
2571 4502 : createStmt->tableElts = coldeflist;
2572 4502 : createStmt->inhRelations = NIL;
2573 4502 : createStmt->constraints = NIL;
2574 4502 : createStmt->options = NIL;
2575 4502 : createStmt->oncommit = ONCOMMIT_NOOP;
2576 4502 : createStmt->tablespacename = NULL;
2577 4502 : createStmt->if_not_exists = false;
2578 :
2579 : /*
2580 : * Check for collision with an existing type name. If there is one and
2581 : * it's an autogenerated array, we can rename it out of the way. This
2582 : * check is here mainly to get a better error message about a "type"
2583 : * instead of below about a "relation".
2584 : */
2585 4502 : typeNamespace = RangeVarGetAndCheckCreationNamespace(createStmt->relation,
2586 : NoLock, NULL);
2587 4502 : RangeVarAdjustRelationPersistence(createStmt->relation, typeNamespace);
2588 : old_type_oid =
2589 4502 : GetSysCacheOid2(TYPENAMENSP, Anum_pg_type_oid,
2590 : CStringGetDatum(createStmt->relation->relname),
2591 : ObjectIdGetDatum(typeNamespace));
2592 4502 : if (OidIsValid(old_type_oid))
2593 : {
2594 0 : if (!moveArrayTypeName(old_type_oid, createStmt->relation->relname, typeNamespace))
2595 0 : ereport(ERROR,
2596 : (errcode(ERRCODE_DUPLICATE_OBJECT),
2597 : errmsg("type \"%s\" already exists", createStmt->relation->relname)));
2598 : }
2599 :
2600 : /*
2601 : * Finally create the relation. This also creates the type.
2602 : */
2603 4502 : DefineRelation(createStmt, RELKIND_COMPOSITE_TYPE, InvalidOid, &address,
2604 : NULL);
2605 :
2606 4490 : return address;
2607 : }
2608 :
2609 : /*
2610 : * AlterDomainDefault
2611 : *
2612 : * Routine implementing ALTER DOMAIN SET/DROP DEFAULT statements.
2613 : *
2614 : * Returns ObjectAddress of the modified domain.
2615 : */
2616 : ObjectAddress
2617 14 : AlterDomainDefault(List *names, Node *defaultRaw)
2618 : {
2619 : TypeName *typename;
2620 : Oid domainoid;
2621 : HeapTuple tup;
2622 : ParseState *pstate;
2623 : Relation rel;
2624 : char *defaultValue;
2625 14 : Node *defaultExpr = NULL; /* NULL if no default specified */
2626 14 : Datum new_record[Natts_pg_type] = {0};
2627 14 : bool new_record_nulls[Natts_pg_type] = {0};
2628 14 : bool new_record_repl[Natts_pg_type] = {0};
2629 : HeapTuple newtuple;
2630 : Form_pg_type typTup;
2631 : ObjectAddress address;
2632 :
2633 : /* Make a TypeName so we can use standard type lookup machinery */
2634 14 : typename = makeTypeNameFromNameList(names);
2635 14 : domainoid = typenameTypeId(NULL, typename);
2636 :
2637 : /* Look up the domain in the type table */
2638 14 : rel = table_open(TypeRelationId, RowExclusiveLock);
2639 :
2640 14 : tup = SearchSysCacheCopy1(TYPEOID, ObjectIdGetDatum(domainoid));
2641 14 : if (!HeapTupleIsValid(tup))
2642 0 : elog(ERROR, "cache lookup failed for type %u", domainoid);
2643 14 : typTup = (Form_pg_type) GETSTRUCT(tup);
2644 :
2645 : /* Check it's a domain and check user has permission for ALTER DOMAIN */
2646 14 : checkDomainOwner(tup);
2647 :
2648 : /* Setup new tuple */
2649 :
2650 : /* Store the new default into the tuple */
2651 14 : if (defaultRaw)
2652 : {
2653 : /* Create a dummy ParseState for transformExpr */
2654 8 : pstate = make_parsestate(NULL);
2655 :
2656 : /*
2657 : * Cook the colDef->raw_expr into an expression. Note: Name is
2658 : * strictly for error message
2659 : */
2660 8 : defaultExpr = cookDefault(pstate, defaultRaw,
2661 : typTup->typbasetype,
2662 : typTup->typtypmod,
2663 8 : NameStr(typTup->typname),
2664 : 0);
2665 :
2666 : /*
2667 : * If the expression is just a NULL constant, we treat the command
2668 : * like ALTER ... DROP DEFAULT. (But see note for same test in
2669 : * DefineDomain.)
2670 : */
2671 8 : if (defaultExpr == NULL ||
2672 8 : (IsA(defaultExpr, Const) && ((Const *) defaultExpr)->constisnull))
2673 : {
2674 : /* Default is NULL, drop it */
2675 0 : defaultExpr = NULL;
2676 0 : new_record_nulls[Anum_pg_type_typdefaultbin - 1] = true;
2677 0 : new_record_repl[Anum_pg_type_typdefaultbin - 1] = true;
2678 0 : new_record_nulls[Anum_pg_type_typdefault - 1] = true;
2679 0 : new_record_repl[Anum_pg_type_typdefault - 1] = true;
2680 : }
2681 : else
2682 : {
2683 : /*
2684 : * Expression must be stored as a nodeToString result, but we also
2685 : * require a valid textual representation (mainly to make life
2686 : * easier for pg_dump).
2687 : */
2688 8 : defaultValue = deparse_expression(defaultExpr,
2689 : NIL, false, false);
2690 :
2691 : /*
2692 : * Form an updated tuple with the new default and write it back.
2693 : */
2694 8 : new_record[Anum_pg_type_typdefaultbin - 1] = CStringGetTextDatum(nodeToString(defaultExpr));
2695 :
2696 8 : new_record_repl[Anum_pg_type_typdefaultbin - 1] = true;
2697 8 : new_record[Anum_pg_type_typdefault - 1] = CStringGetTextDatum(defaultValue);
2698 8 : new_record_repl[Anum_pg_type_typdefault - 1] = true;
2699 : }
2700 : }
2701 : else
2702 : {
2703 : /* ALTER ... DROP DEFAULT */
2704 6 : new_record_nulls[Anum_pg_type_typdefaultbin - 1] = true;
2705 6 : new_record_repl[Anum_pg_type_typdefaultbin - 1] = true;
2706 6 : new_record_nulls[Anum_pg_type_typdefault - 1] = true;
2707 6 : new_record_repl[Anum_pg_type_typdefault - 1] = true;
2708 : }
2709 :
2710 14 : newtuple = heap_modify_tuple(tup, RelationGetDescr(rel),
2711 : new_record, new_record_nulls,
2712 : new_record_repl);
2713 :
2714 14 : CatalogTupleUpdate(rel, &tup->t_self, newtuple);
2715 :
2716 : /* Rebuild dependencies */
2717 14 : GenerateTypeDependencies(newtuple,
2718 : rel,
2719 : defaultExpr,
2720 : NULL, /* don't have typacl handy */
2721 : 0, /* relation kind is n/a */
2722 : false, /* a domain isn't an implicit array */
2723 : false, /* nor is it any kind of dependent type */
2724 : false, /* don't touch extension membership */
2725 : true); /* We do need to rebuild dependencies */
2726 :
2727 14 : InvokeObjectPostAlterHook(TypeRelationId, domainoid, 0);
2728 :
2729 14 : ObjectAddressSet(address, TypeRelationId, domainoid);
2730 :
2731 : /* Clean up */
2732 14 : table_close(rel, RowExclusiveLock);
2733 14 : heap_freetuple(newtuple);
2734 :
2735 14 : return address;
2736 : }
2737 :
2738 : /*
2739 : * AlterDomainNotNull
2740 : *
2741 : * Routine implementing ALTER DOMAIN SET/DROP NOT NULL statements.
2742 : *
2743 : * Returns ObjectAddress of the modified domain.
2744 : */
2745 : ObjectAddress
2746 36 : AlterDomainNotNull(List *names, bool notNull)
2747 : {
2748 : TypeName *typename;
2749 : Oid domainoid;
2750 : Relation typrel;
2751 : HeapTuple tup;
2752 : Form_pg_type typTup;
2753 36 : ObjectAddress address = InvalidObjectAddress;
2754 :
2755 : /* Make a TypeName so we can use standard type lookup machinery */
2756 36 : typename = makeTypeNameFromNameList(names);
2757 36 : domainoid = typenameTypeId(NULL, typename);
2758 :
2759 : /* Look up the domain in the type table */
2760 36 : typrel = table_open(TypeRelationId, RowExclusiveLock);
2761 :
2762 36 : tup = SearchSysCacheCopy1(TYPEOID, ObjectIdGetDatum(domainoid));
2763 36 : if (!HeapTupleIsValid(tup))
2764 0 : elog(ERROR, "cache lookup failed for type %u", domainoid);
2765 36 : typTup = (Form_pg_type) GETSTRUCT(tup);
2766 :
2767 : /* Check it's a domain and check user has permission for ALTER DOMAIN */
2768 36 : checkDomainOwner(tup);
2769 :
2770 : /* Is the domain already set to the desired constraint? */
2771 36 : if (typTup->typnotnull == notNull)
2772 : {
2773 0 : table_close(typrel, RowExclusiveLock);
2774 0 : return address;
2775 : }
2776 :
2777 36 : if (notNull)
2778 : {
2779 : Constraint *constr;
2780 :
2781 24 : constr = makeNode(Constraint);
2782 24 : constr->contype = CONSTR_NOTNULL;
2783 24 : constr->initially_valid = true;
2784 24 : constr->location = -1;
2785 :
2786 24 : domainAddNotNullConstraint(domainoid, typTup->typnamespace,
2787 : typTup->typbasetype, typTup->typtypmod,
2788 24 : constr, NameStr(typTup->typname), NULL);
2789 :
2790 24 : validateDomainNotNullConstraint(domainoid);
2791 : }
2792 : else
2793 : {
2794 : HeapTuple conTup;
2795 : ObjectAddress conobj;
2796 :
2797 12 : conTup = findDomainNotNullConstraint(domainoid);
2798 12 : if (conTup == NULL)
2799 0 : elog(ERROR, "could not find not-null constraint on domain \"%s\"", NameStr(typTup->typname));
2800 :
2801 12 : ObjectAddressSet(conobj, ConstraintRelationId, ((Form_pg_constraint) GETSTRUCT(conTup))->oid);
2802 12 : performDeletion(&conobj, DROP_RESTRICT, 0);
2803 : }
2804 :
2805 : /*
2806 : * Okay to update pg_type row. We can scribble on typTup because it's a
2807 : * copy.
2808 : */
2809 24 : typTup->typnotnull = notNull;
2810 :
2811 24 : CatalogTupleUpdate(typrel, &tup->t_self, tup);
2812 :
2813 24 : InvokeObjectPostAlterHook(TypeRelationId, domainoid, 0);
2814 :
2815 24 : ObjectAddressSet(address, TypeRelationId, domainoid);
2816 :
2817 : /* Clean up */
2818 24 : heap_freetuple(tup);
2819 24 : table_close(typrel, RowExclusiveLock);
2820 :
2821 24 : return address;
2822 : }
2823 :
2824 : /*
2825 : * AlterDomainDropConstraint
2826 : *
2827 : * Implements the ALTER DOMAIN DROP CONSTRAINT statement
2828 : *
2829 : * Returns ObjectAddress of the modified domain.
2830 : */
2831 : ObjectAddress
2832 60 : AlterDomainDropConstraint(List *names, const char *constrName,
2833 : DropBehavior behavior, bool missing_ok)
2834 : {
2835 : TypeName *typename;
2836 : Oid domainoid;
2837 : HeapTuple tup;
2838 : Relation rel;
2839 : Relation conrel;
2840 : SysScanDesc conscan;
2841 : ScanKeyData skey[3];
2842 : HeapTuple contup;
2843 60 : bool found = false;
2844 : ObjectAddress address;
2845 :
2846 : /* Make a TypeName so we can use standard type lookup machinery */
2847 60 : typename = makeTypeNameFromNameList(names);
2848 60 : domainoid = typenameTypeId(NULL, typename);
2849 :
2850 : /* Look up the domain in the type table */
2851 60 : rel = table_open(TypeRelationId, RowExclusiveLock);
2852 :
2853 60 : tup = SearchSysCacheCopy1(TYPEOID, ObjectIdGetDatum(domainoid));
2854 60 : if (!HeapTupleIsValid(tup))
2855 0 : elog(ERROR, "cache lookup failed for type %u", domainoid);
2856 :
2857 : /* Check it's a domain and check user has permission for ALTER DOMAIN */
2858 60 : checkDomainOwner(tup);
2859 :
2860 : /* Grab an appropriate lock on the pg_constraint relation */
2861 60 : conrel = table_open(ConstraintRelationId, RowExclusiveLock);
2862 :
2863 : /* Find and remove the target constraint */
2864 60 : ScanKeyInit(&skey[0],
2865 : Anum_pg_constraint_conrelid,
2866 : BTEqualStrategyNumber, F_OIDEQ,
2867 : ObjectIdGetDatum(InvalidOid));
2868 60 : ScanKeyInit(&skey[1],
2869 : Anum_pg_constraint_contypid,
2870 : BTEqualStrategyNumber, F_OIDEQ,
2871 : ObjectIdGetDatum(domainoid));
2872 60 : ScanKeyInit(&skey[2],
2873 : Anum_pg_constraint_conname,
2874 : BTEqualStrategyNumber, F_NAMEEQ,
2875 : CStringGetDatum(constrName));
2876 :
2877 60 : conscan = systable_beginscan(conrel, ConstraintRelidTypidNameIndexId, true,
2878 : NULL, 3, skey);
2879 :
2880 : /* There can be at most one matching row */
2881 60 : if ((contup = systable_getnext(conscan)) != NULL)
2882 : {
2883 48 : Form_pg_constraint construct = (Form_pg_constraint) GETSTRUCT(contup);
2884 : ObjectAddress conobj;
2885 :
2886 48 : if (construct->contype == CONSTRAINT_NOTNULL)
2887 : {
2888 12 : ((Form_pg_type) GETSTRUCT(tup))->typnotnull = false;
2889 12 : CatalogTupleUpdate(rel, &tup->t_self, tup);
2890 : }
2891 :
2892 48 : conobj.classId = ConstraintRelationId;
2893 48 : conobj.objectId = construct->oid;
2894 48 : conobj.objectSubId = 0;
2895 :
2896 48 : performDeletion(&conobj, behavior, 0);
2897 48 : found = true;
2898 : }
2899 :
2900 : /* Clean up after the scan */
2901 60 : systable_endscan(conscan);
2902 60 : table_close(conrel, RowExclusiveLock);
2903 :
2904 60 : if (!found)
2905 : {
2906 12 : if (!missing_ok)
2907 6 : ereport(ERROR,
2908 : (errcode(ERRCODE_UNDEFINED_OBJECT),
2909 : errmsg("constraint \"%s\" of domain \"%s\" does not exist",
2910 : constrName, TypeNameToString(typename))));
2911 : else
2912 6 : ereport(NOTICE,
2913 : (errmsg("constraint \"%s\" of domain \"%s\" does not exist, skipping",
2914 : constrName, TypeNameToString(typename))));
2915 : }
2916 :
2917 : /*
2918 : * We must send out an sinval message for the domain, to ensure that any
2919 : * dependent plans get rebuilt. Since this command doesn't change the
2920 : * domain's pg_type row, that won't happen automatically; do it manually.
2921 : */
2922 54 : CacheInvalidateHeapTuple(rel, tup, NULL);
2923 :
2924 54 : ObjectAddressSet(address, TypeRelationId, domainoid);
2925 :
2926 : /* Clean up */
2927 54 : table_close(rel, RowExclusiveLock);
2928 :
2929 54 : return address;
2930 : }
2931 :
2932 : /*
2933 : * AlterDomainAddConstraint
2934 : *
2935 : * Implements the ALTER DOMAIN .. ADD CONSTRAINT statement.
2936 : */
2937 : ObjectAddress
2938 182 : AlterDomainAddConstraint(List *names, Node *newConstraint,
2939 : ObjectAddress *constrAddr)
2940 : {
2941 : TypeName *typename;
2942 : Oid domainoid;
2943 : Relation typrel;
2944 : HeapTuple tup;
2945 : Form_pg_type typTup;
2946 : Constraint *constr;
2947 : char *ccbin;
2948 182 : ObjectAddress address = InvalidObjectAddress;
2949 :
2950 : /* Make a TypeName so we can use standard type lookup machinery */
2951 182 : typename = makeTypeNameFromNameList(names);
2952 182 : domainoid = typenameTypeId(NULL, typename);
2953 :
2954 : /* Look up the domain in the type table */
2955 182 : typrel = table_open(TypeRelationId, RowExclusiveLock);
2956 :
2957 182 : tup = SearchSysCacheCopy1(TYPEOID, ObjectIdGetDatum(domainoid));
2958 182 : if (!HeapTupleIsValid(tup))
2959 0 : elog(ERROR, "cache lookup failed for type %u", domainoid);
2960 182 : typTup = (Form_pg_type) GETSTRUCT(tup);
2961 :
2962 : /* Check it's a domain and check user has permission for ALTER DOMAIN */
2963 182 : checkDomainOwner(tup);
2964 :
2965 182 : if (!IsA(newConstraint, Constraint))
2966 0 : elog(ERROR, "unrecognized node type: %d",
2967 : (int) nodeTag(newConstraint));
2968 :
2969 182 : constr = (Constraint *) newConstraint;
2970 :
2971 : /* enforced by parser */
2972 : Assert(constr->contype == CONSTR_CHECK || constr->contype == CONSTR_NOTNULL);
2973 :
2974 182 : if (constr->contype == CONSTR_CHECK)
2975 : {
2976 : /*
2977 : * First, process the constraint expression and add an entry to
2978 : * pg_constraint.
2979 : */
2980 :
2981 152 : ccbin = domainAddCheckConstraint(domainoid, typTup->typnamespace,
2982 : typTup->typbasetype, typTup->typtypmod,
2983 152 : constr, NameStr(typTup->typname), constrAddr);
2984 :
2985 :
2986 : /*
2987 : * If requested to validate the constraint, test all values stored in
2988 : * the attributes based on the domain the constraint is being added
2989 : * to.
2990 : */
2991 146 : if (!constr->skip_validation)
2992 132 : validateDomainCheckConstraint(domainoid, ccbin, ShareLock);
2993 :
2994 : /*
2995 : * We must send out an sinval message for the domain, to ensure that
2996 : * any dependent plans get rebuilt. Since this command doesn't change
2997 : * the domain's pg_type row, that won't happen automatically; do it
2998 : * manually.
2999 : */
3000 86 : CacheInvalidateHeapTuple(typrel, tup, NULL);
3001 : }
3002 30 : else if (constr->contype == CONSTR_NOTNULL)
3003 : {
3004 : /* Is the domain already set NOT NULL? */
3005 30 : if (typTup->typnotnull)
3006 : {
3007 6 : table_close(typrel, RowExclusiveLock);
3008 6 : return address;
3009 : }
3010 24 : domainAddNotNullConstraint(domainoid, typTup->typnamespace,
3011 : typTup->typbasetype, typTup->typtypmod,
3012 24 : constr, NameStr(typTup->typname), constrAddr);
3013 :
3014 24 : if (!constr->skip_validation)
3015 24 : validateDomainNotNullConstraint(domainoid);
3016 :
3017 12 : typTup->typnotnull = true;
3018 12 : CatalogTupleUpdate(typrel, &tup->t_self, tup);
3019 : }
3020 :
3021 98 : ObjectAddressSet(address, TypeRelationId, domainoid);
3022 :
3023 : /* Clean up */
3024 98 : table_close(typrel, RowExclusiveLock);
3025 :
3026 98 : return address;
3027 : }
3028 :
3029 : /*
3030 : * AlterDomainValidateConstraint
3031 : *
3032 : * Implements the ALTER DOMAIN .. VALIDATE CONSTRAINT statement.
3033 : */
3034 : ObjectAddress
3035 12 : AlterDomainValidateConstraint(List *names, const char *constrName)
3036 : {
3037 : TypeName *typename;
3038 : Oid domainoid;
3039 : Relation typrel;
3040 : Relation conrel;
3041 : HeapTuple tup;
3042 : Form_pg_constraint con;
3043 : Form_pg_constraint copy_con;
3044 : char *conbin;
3045 : SysScanDesc scan;
3046 : Datum val;
3047 : HeapTuple tuple;
3048 : HeapTuple copyTuple;
3049 : ScanKeyData skey[3];
3050 : ObjectAddress address;
3051 :
3052 : /* Make a TypeName so we can use standard type lookup machinery */
3053 12 : typename = makeTypeNameFromNameList(names);
3054 12 : domainoid = typenameTypeId(NULL, typename);
3055 :
3056 : /* Look up the domain in the type table */
3057 12 : typrel = table_open(TypeRelationId, AccessShareLock);
3058 :
3059 12 : tup = SearchSysCache1(TYPEOID, ObjectIdGetDatum(domainoid));
3060 12 : if (!HeapTupleIsValid(tup))
3061 0 : elog(ERROR, "cache lookup failed for type %u", domainoid);
3062 :
3063 : /* Check it's a domain and check user has permission for ALTER DOMAIN */
3064 12 : checkDomainOwner(tup);
3065 :
3066 : /*
3067 : * Find and check the target constraint
3068 : */
3069 12 : conrel = table_open(ConstraintRelationId, RowExclusiveLock);
3070 :
3071 12 : ScanKeyInit(&skey[0],
3072 : Anum_pg_constraint_conrelid,
3073 : BTEqualStrategyNumber, F_OIDEQ,
3074 : ObjectIdGetDatum(InvalidOid));
3075 12 : ScanKeyInit(&skey[1],
3076 : Anum_pg_constraint_contypid,
3077 : BTEqualStrategyNumber, F_OIDEQ,
3078 : ObjectIdGetDatum(domainoid));
3079 12 : ScanKeyInit(&skey[2],
3080 : Anum_pg_constraint_conname,
3081 : BTEqualStrategyNumber, F_NAMEEQ,
3082 : CStringGetDatum(constrName));
3083 :
3084 12 : scan = systable_beginscan(conrel, ConstraintRelidTypidNameIndexId, true,
3085 : NULL, 3, skey);
3086 :
3087 : /* There can be at most one matching row */
3088 12 : if (!HeapTupleIsValid(tuple = systable_getnext(scan)))
3089 0 : ereport(ERROR,
3090 : (errcode(ERRCODE_UNDEFINED_OBJECT),
3091 : errmsg("constraint \"%s\" of domain \"%s\" does not exist",
3092 : constrName, TypeNameToString(typename))));
3093 :
3094 12 : con = (Form_pg_constraint) GETSTRUCT(tuple);
3095 12 : if (con->contype != CONSTRAINT_CHECK)
3096 0 : ereport(ERROR,
3097 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
3098 : errmsg("constraint \"%s\" of domain \"%s\" is not a check constraint",
3099 : constrName, TypeNameToString(typename))));
3100 :
3101 12 : val = SysCacheGetAttrNotNull(CONSTROID, tuple, Anum_pg_constraint_conbin);
3102 12 : conbin = TextDatumGetCString(val);
3103 :
3104 : /*
3105 : * Locking related relations with ShareUpdateExclusiveLock is ok because
3106 : * not-yet-valid constraints are still enforced against concurrent inserts
3107 : * or updates.
3108 : */
3109 12 : validateDomainCheckConstraint(domainoid, conbin, ShareUpdateExclusiveLock);
3110 :
3111 : /*
3112 : * Now update the catalog, while we have the door open.
3113 : */
3114 6 : copyTuple = heap_copytuple(tuple);
3115 6 : copy_con = (Form_pg_constraint) GETSTRUCT(copyTuple);
3116 6 : copy_con->convalidated = true;
3117 6 : CatalogTupleUpdate(conrel, ©Tuple->t_self, copyTuple);
3118 :
3119 6 : InvokeObjectPostAlterHook(ConstraintRelationId, con->oid, 0);
3120 :
3121 6 : ObjectAddressSet(address, TypeRelationId, domainoid);
3122 :
3123 6 : heap_freetuple(copyTuple);
3124 :
3125 6 : systable_endscan(scan);
3126 :
3127 6 : table_close(typrel, AccessShareLock);
3128 6 : table_close(conrel, RowExclusiveLock);
3129 :
3130 6 : ReleaseSysCache(tup);
3131 :
3132 6 : return address;
3133 : }
3134 :
3135 : /*
3136 : * Verify that all columns currently using the domain are not null.
3137 : */
3138 : static void
3139 48 : validateDomainNotNullConstraint(Oid domainoid)
3140 : {
3141 : List *rels;
3142 : ListCell *rt;
3143 :
3144 : /* Fetch relation list with attributes based on this domain */
3145 : /* ShareLock is sufficient to prevent concurrent data changes */
3146 :
3147 48 : rels = get_rels_with_domain(domainoid, ShareLock);
3148 :
3149 66 : foreach(rt, rels)
3150 : {
3151 42 : RelToCheck *rtc = (RelToCheck *) lfirst(rt);
3152 42 : Relation testrel = rtc->rel;
3153 42 : TupleDesc tupdesc = RelationGetDescr(testrel);
3154 : TupleTableSlot *slot;
3155 : TableScanDesc scan;
3156 : Snapshot snapshot;
3157 :
3158 : /* Scan all tuples in this relation */
3159 42 : snapshot = RegisterSnapshot(GetLatestSnapshot());
3160 42 : scan = table_beginscan(testrel, snapshot, 0, NULL);
3161 42 : slot = table_slot_create(testrel, NULL);
3162 60 : while (table_scan_getnextslot(scan, ForwardScanDirection, slot))
3163 : {
3164 : int i;
3165 :
3166 : /* Test attributes that are of the domain */
3167 90 : for (i = 0; i < rtc->natts; i++)
3168 : {
3169 72 : int attnum = rtc->atts[i];
3170 72 : Form_pg_attribute attr = TupleDescAttr(tupdesc, attnum - 1);
3171 :
3172 72 : if (slot_attisnull(slot, attnum))
3173 : {
3174 : /*
3175 : * In principle the auxiliary information for this error
3176 : * should be errdatatype(), but errtablecol() seems
3177 : * considerably more useful in practice. Since this code
3178 : * only executes in an ALTER DOMAIN command, the client
3179 : * should already know which domain is in question.
3180 : */
3181 24 : ereport(ERROR,
3182 : (errcode(ERRCODE_NOT_NULL_VIOLATION),
3183 : errmsg("column \"%s\" of table \"%s\" contains null values",
3184 : NameStr(attr->attname),
3185 : RelationGetRelationName(testrel)),
3186 : errtablecol(testrel, attnum)));
3187 : }
3188 : }
3189 : }
3190 18 : ExecDropSingleTupleTableSlot(slot);
3191 18 : table_endscan(scan);
3192 18 : UnregisterSnapshot(snapshot);
3193 :
3194 : /* Close each rel after processing, but keep lock */
3195 18 : table_close(testrel, NoLock);
3196 : }
3197 24 : }
3198 :
3199 : /*
3200 : * Verify that all columns currently using the domain satisfy the given check
3201 : * constraint expression.
3202 : *
3203 : * It is used to validate existing constraints and to add newly created check
3204 : * constraints to a domain.
3205 : *
3206 : * The lockmode is used for relations using the domain. It should be
3207 : * ShareLock when adding a new constraint to domain. It can be
3208 : * ShareUpdateExclusiveLock when validating an existing constraint.
3209 : */
3210 : static void
3211 144 : validateDomainCheckConstraint(Oid domainoid, const char *ccbin, LOCKMODE lockmode)
3212 : {
3213 144 : Expr *expr = (Expr *) stringToNode(ccbin);
3214 : List *rels;
3215 : ListCell *rt;
3216 : EState *estate;
3217 : ExprContext *econtext;
3218 : ExprState *exprstate;
3219 :
3220 : /* Need an EState to run ExecEvalExpr */
3221 144 : estate = CreateExecutorState();
3222 144 : econtext = GetPerTupleExprContext(estate);
3223 :
3224 : /* build execution state for expr */
3225 144 : exprstate = ExecPrepareExpr(expr, estate);
3226 :
3227 : /* Fetch relation list with attributes based on this domain */
3228 144 : rels = get_rels_with_domain(domainoid, lockmode);
3229 :
3230 150 : foreach(rt, rels)
3231 : {
3232 72 : RelToCheck *rtc = (RelToCheck *) lfirst(rt);
3233 72 : Relation testrel = rtc->rel;
3234 72 : TupleDesc tupdesc = RelationGetDescr(testrel);
3235 : TupleTableSlot *slot;
3236 : TableScanDesc scan;
3237 : Snapshot snapshot;
3238 :
3239 : /* Scan all tuples in this relation */
3240 72 : snapshot = RegisterSnapshot(GetLatestSnapshot());
3241 72 : scan = table_beginscan(testrel, snapshot, 0, NULL);
3242 72 : slot = table_slot_create(testrel, NULL);
3243 168 : while (table_scan_getnextslot(scan, ForwardScanDirection, slot))
3244 : {
3245 : int i;
3246 :
3247 : /* Test attributes that are of the domain */
3248 228 : for (i = 0; i < rtc->natts; i++)
3249 : {
3250 132 : int attnum = rtc->atts[i];
3251 : Datum d;
3252 : bool isNull;
3253 : Datum conResult;
3254 :
3255 132 : d = slot_getattr(slot, attnum, &isNull);
3256 :
3257 132 : econtext->domainValue_datum = d;
3258 132 : econtext->domainValue_isNull = isNull;
3259 :
3260 132 : conResult = ExecEvalExprSwitchContext(exprstate,
3261 : econtext,
3262 : &isNull);
3263 :
3264 132 : if (!isNull && !DatumGetBool(conResult))
3265 : {
3266 36 : Form_pg_attribute attr = TupleDescAttr(tupdesc, attnum - 1);
3267 :
3268 : /*
3269 : * In principle the auxiliary information for this error
3270 : * should be errdomainconstraint(), but errtablecol()
3271 : * seems considerably more useful in practice. Since this
3272 : * code only executes in an ALTER DOMAIN command, the
3273 : * client should already know which domain is in question,
3274 : * and which constraint too.
3275 : */
3276 36 : ereport(ERROR,
3277 : (errcode(ERRCODE_CHECK_VIOLATION),
3278 : errmsg("column \"%s\" of table \"%s\" contains values that violate the new constraint",
3279 : NameStr(attr->attname),
3280 : RelationGetRelationName(testrel)),
3281 : errtablecol(testrel, attnum)));
3282 : }
3283 : }
3284 :
3285 96 : ResetExprContext(econtext);
3286 : }
3287 36 : ExecDropSingleTupleTableSlot(slot);
3288 36 : table_endscan(scan);
3289 36 : UnregisterSnapshot(snapshot);
3290 :
3291 : /* Hold relation lock till commit (XXX bad for concurrency) */
3292 36 : table_close(testrel, NoLock);
3293 : }
3294 :
3295 78 : FreeExecutorState(estate);
3296 78 : }
3297 :
3298 : /*
3299 : * get_rels_with_domain
3300 : *
3301 : * Fetch all relations / attributes which are using the domain
3302 : *
3303 : * The result is a list of RelToCheck structs, one for each distinct
3304 : * relation, each containing one or more attribute numbers that are of
3305 : * the domain type. We have opened each rel and acquired the specified lock
3306 : * type on it.
3307 : *
3308 : * We support nested domains by including attributes that are of derived
3309 : * domain types. Current callers do not need to distinguish between attributes
3310 : * that are of exactly the given domain and those that are of derived domains.
3311 : *
3312 : * XXX this is completely broken because there is no way to lock the domain
3313 : * to prevent columns from being added or dropped while our command runs.
3314 : * We can partially protect against column drops by locking relations as we
3315 : * come across them, but there is still a race condition (the window between
3316 : * seeing a pg_depend entry and acquiring lock on the relation it references).
3317 : * Also, holding locks on all these relations simultaneously creates a non-
3318 : * trivial risk of deadlock. We can minimize but not eliminate the deadlock
3319 : * risk by using the weakest suitable lock (ShareLock for most callers).
3320 : *
3321 : * XXX the API for this is not sufficient to support checking domain values
3322 : * that are inside container types, such as composite types, arrays, or
3323 : * ranges. Currently we just error out if a container type containing the
3324 : * target domain is stored anywhere.
3325 : *
3326 : * Generally used for retrieving a list of tests when adding
3327 : * new constraints to a domain.
3328 : */
3329 : static List *
3330 204 : get_rels_with_domain(Oid domainOid, LOCKMODE lockmode)
3331 : {
3332 204 : List *result = NIL;
3333 204 : char *domainTypeName = format_type_be(domainOid);
3334 : Relation depRel;
3335 : ScanKeyData key[2];
3336 : SysScanDesc depScan;
3337 : HeapTuple depTup;
3338 :
3339 : Assert(lockmode != NoLock);
3340 :
3341 : /* since this function recurses, it could be driven to stack overflow */
3342 204 : check_stack_depth();
3343 :
3344 : /*
3345 : * We scan pg_depend to find those things that depend on the domain. (We
3346 : * assume we can ignore refobjsubid for a domain.)
3347 : */
3348 204 : depRel = table_open(DependRelationId, AccessShareLock);
3349 :
3350 204 : ScanKeyInit(&key[0],
3351 : Anum_pg_depend_refclassid,
3352 : BTEqualStrategyNumber, F_OIDEQ,
3353 : ObjectIdGetDatum(TypeRelationId));
3354 204 : ScanKeyInit(&key[1],
3355 : Anum_pg_depend_refobjid,
3356 : BTEqualStrategyNumber, F_OIDEQ,
3357 : ObjectIdGetDatum(domainOid));
3358 :
3359 204 : depScan = systable_beginscan(depRel, DependReferenceIndexId, true,
3360 : NULL, 2, key);
3361 :
3362 692 : while (HeapTupleIsValid(depTup = systable_getnext(depScan)))
3363 : {
3364 518 : Form_pg_depend pg_depend = (Form_pg_depend) GETSTRUCT(depTup);
3365 518 : RelToCheck *rtc = NULL;
3366 : ListCell *rellist;
3367 : Form_pg_attribute pg_att;
3368 : int ptr;
3369 :
3370 : /* Check for directly dependent types */
3371 518 : if (pg_depend->classid == TypeRelationId)
3372 : {
3373 222 : if (get_typtype(pg_depend->objid) == TYPTYPE_DOMAIN)
3374 : {
3375 : /*
3376 : * This is a sub-domain, so recursively add dependent columns
3377 : * to the output list. This is a bit inefficient since we may
3378 : * fail to combine RelToCheck entries when attributes of the
3379 : * same rel have different derived domain types, but it's
3380 : * probably not worth improving.
3381 : */
3382 12 : result = list_concat(result,
3383 12 : get_rels_with_domain(pg_depend->objid,
3384 : lockmode));
3385 : }
3386 : else
3387 : {
3388 : /*
3389 : * Otherwise, it is some container type using the domain, so
3390 : * fail if there are any columns of this type.
3391 : */
3392 210 : find_composite_type_dependencies(pg_depend->objid,
3393 : NULL,
3394 : domainTypeName);
3395 : }
3396 216 : continue;
3397 : }
3398 :
3399 : /* Else, ignore dependees that aren't user columns of relations */
3400 : /* (we assume system columns are never of domain types) */
3401 296 : if (pg_depend->classid != RelationRelationId ||
3402 216 : pg_depend->objsubid <= 0)
3403 80 : continue;
3404 :
3405 : /* See if we already have an entry for this relation */
3406 220 : foreach(rellist, result)
3407 : {
3408 46 : RelToCheck *rt = (RelToCheck *) lfirst(rellist);
3409 :
3410 46 : if (RelationGetRelid(rt->rel) == pg_depend->objid)
3411 : {
3412 42 : rtc = rt;
3413 42 : break;
3414 : }
3415 : }
3416 :
3417 216 : if (rtc == NULL)
3418 : {
3419 : /* First attribute found for this relation */
3420 : Relation rel;
3421 :
3422 : /* Acquire requested lock on relation */
3423 174 : rel = relation_open(pg_depend->objid, lockmode);
3424 :
3425 : /*
3426 : * Check to see if rowtype is stored anyplace as a composite-type
3427 : * column; if so we have to fail, for now anyway.
3428 : */
3429 174 : if (OidIsValid(rel->rd_rel->reltype))
3430 174 : find_composite_type_dependencies(rel->rd_rel->reltype,
3431 : NULL,
3432 : domainTypeName);
3433 :
3434 : /*
3435 : * Otherwise, we can ignore relations except those with both
3436 : * storage and user-chosen column types.
3437 : *
3438 : * XXX If an index-only scan could satisfy "col::some_domain" from
3439 : * a suitable expression index, this should also check expression
3440 : * index columns.
3441 : */
3442 150 : if (rel->rd_rel->relkind != RELKIND_RELATION &&
3443 36 : rel->rd_rel->relkind != RELKIND_MATVIEW)
3444 : {
3445 36 : relation_close(rel, lockmode);
3446 36 : continue;
3447 : }
3448 :
3449 : /* Build the RelToCheck entry with enough space for all atts */
3450 114 : rtc = palloc_object(RelToCheck);
3451 114 : rtc->rel = rel;
3452 114 : rtc->natts = 0;
3453 114 : rtc->atts = palloc_array(int, RelationGetNumberOfAttributes(rel));
3454 114 : result = lappend(result, rtc);
3455 : }
3456 :
3457 : /*
3458 : * Confirm column has not been dropped, and is of the expected type.
3459 : * This defends against an ALTER DROP COLUMN occurring just before we
3460 : * acquired lock ... but if the whole table were dropped, we'd still
3461 : * have a problem.
3462 : */
3463 156 : if (pg_depend->objsubid > RelationGetNumberOfAttributes(rtc->rel))
3464 0 : continue;
3465 156 : pg_att = TupleDescAttr(rtc->rel->rd_att, pg_depend->objsubid - 1);
3466 156 : if (pg_att->attisdropped || pg_att->atttypid != domainOid)
3467 0 : continue;
3468 :
3469 : /*
3470 : * Okay, add column to result. We store the columns in column-number
3471 : * order; this is just a hack to improve predictability of regression
3472 : * test output ...
3473 : */
3474 : Assert(rtc->natts < RelationGetNumberOfAttributes(rtc->rel));
3475 :
3476 156 : ptr = rtc->natts++;
3477 156 : while (ptr > 0 && rtc->atts[ptr - 1] > pg_depend->objsubid)
3478 : {
3479 0 : rtc->atts[ptr] = rtc->atts[ptr - 1];
3480 0 : ptr--;
3481 : }
3482 156 : rtc->atts[ptr] = pg_depend->objsubid;
3483 : }
3484 :
3485 174 : systable_endscan(depScan);
3486 :
3487 174 : relation_close(depRel, AccessShareLock);
3488 :
3489 174 : return result;
3490 : }
3491 :
3492 : /*
3493 : * checkDomainOwner
3494 : *
3495 : * Check that the type is actually a domain and that the current user
3496 : * has permission to do ALTER DOMAIN on it. Throw an error if not.
3497 : */
3498 : void
3499 310 : checkDomainOwner(HeapTuple tup)
3500 : {
3501 310 : Form_pg_type typTup = (Form_pg_type) GETSTRUCT(tup);
3502 :
3503 : /* Check that this is actually a domain */
3504 310 : if (typTup->typtype != TYPTYPE_DOMAIN)
3505 0 : ereport(ERROR,
3506 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
3507 : errmsg("%s is not a domain",
3508 : format_type_be(typTup->oid))));
3509 :
3510 : /* Permission check: must own type */
3511 310 : if (!object_ownercheck(TypeRelationId, typTup->oid, GetUserId()))
3512 0 : aclcheck_error_type(ACLCHECK_NOT_OWNER, typTup->oid);
3513 310 : }
3514 :
3515 : /*
3516 : * domainAddCheckConstraint - code shared between CREATE and ALTER DOMAIN
3517 : */
3518 : static char *
3519 706 : domainAddCheckConstraint(Oid domainOid, Oid domainNamespace, Oid baseTypeOid,
3520 : int typMod, Constraint *constr,
3521 : const char *domainName, ObjectAddress *constrAddr)
3522 : {
3523 : Node *expr;
3524 : char *ccbin;
3525 : ParseState *pstate;
3526 : CoerceToDomainValue *domVal;
3527 : Oid ccoid;
3528 :
3529 : Assert(constr->contype == CONSTR_CHECK);
3530 :
3531 : /*
3532 : * Assign or validate constraint name
3533 : */
3534 706 : if (constr->conname)
3535 : {
3536 400 : if (ConstraintNameIsUsed(CONSTRAINT_DOMAIN,
3537 : domainOid,
3538 400 : constr->conname))
3539 0 : ereport(ERROR,
3540 : (errcode(ERRCODE_DUPLICATE_OBJECT),
3541 : errmsg("constraint \"%s\" for domain \"%s\" already exists",
3542 : constr->conname, domainName)));
3543 : }
3544 : else
3545 306 : constr->conname = ChooseConstraintName(domainName,
3546 : NULL,
3547 : "check",
3548 : domainNamespace,
3549 : NIL);
3550 :
3551 : /*
3552 : * Convert the A_EXPR in raw_expr into an EXPR
3553 : */
3554 706 : pstate = make_parsestate(NULL);
3555 :
3556 : /*
3557 : * Set up a CoerceToDomainValue to represent the occurrence of VALUE in
3558 : * the expression. Note that it will appear to have the type of the base
3559 : * type, not the domain. This seems correct since within the check
3560 : * expression, we should not assume the input value can be considered a
3561 : * member of the domain.
3562 : */
3563 706 : domVal = makeNode(CoerceToDomainValue);
3564 706 : domVal->typeId = baseTypeOid;
3565 706 : domVal->typeMod = typMod;
3566 706 : domVal->collation = get_typcollation(baseTypeOid);
3567 706 : domVal->location = -1; /* will be set when/if used */
3568 :
3569 706 : pstate->p_pre_columnref_hook = replace_domain_constraint_value;
3570 706 : pstate->p_ref_hook_state = domVal;
3571 :
3572 706 : expr = transformExpr(pstate, constr->raw_expr, EXPR_KIND_DOMAIN_CHECK);
3573 :
3574 : /*
3575 : * Make sure it yields a boolean result.
3576 : */
3577 700 : expr = coerce_to_boolean(pstate, expr, "CHECK");
3578 :
3579 : /*
3580 : * Fix up collation information.
3581 : */
3582 700 : assign_expr_collations(pstate, expr);
3583 :
3584 : /*
3585 : * Domains don't allow variables (this is probably dead code now that
3586 : * add_missing_from is history, but let's be sure).
3587 : */
3588 1400 : if (pstate->p_rtable != NIL ||
3589 700 : contain_var_clause(expr))
3590 0 : ereport(ERROR,
3591 : (errcode(ERRCODE_INVALID_COLUMN_REFERENCE),
3592 : errmsg("cannot use table references in domain check constraint")));
3593 :
3594 : /*
3595 : * Convert to string form for storage.
3596 : */
3597 700 : ccbin = nodeToString(expr);
3598 :
3599 : /*
3600 : * Store the constraint in pg_constraint
3601 : */
3602 : ccoid =
3603 700 : CreateConstraintEntry(constr->conname, /* Constraint Name */
3604 : domainNamespace, /* namespace */
3605 : CONSTRAINT_CHECK, /* Constraint Type */
3606 : false, /* Is Deferrable */
3607 : false, /* Is Deferred */
3608 : true, /* Is Enforced */
3609 700 : !constr->skip_validation, /* Is Validated */
3610 : InvalidOid, /* no parent constraint */
3611 : InvalidOid, /* not a relation constraint */
3612 : NULL,
3613 : 0,
3614 : 0,
3615 : domainOid, /* domain constraint */
3616 : InvalidOid, /* no associated index */
3617 : InvalidOid, /* Foreign key fields */
3618 : NULL,
3619 : NULL,
3620 : NULL,
3621 : NULL,
3622 : 0,
3623 : ' ',
3624 : ' ',
3625 : NULL,
3626 : 0,
3627 : ' ',
3628 : NULL, /* not an exclusion constraint */
3629 : expr, /* Tree form of check constraint */
3630 : ccbin, /* Binary form of check constraint */
3631 : true, /* is local */
3632 : 0, /* inhcount */
3633 : false, /* connoinherit */
3634 : false, /* conperiod */
3635 700 : false); /* is_internal */
3636 700 : if (constrAddr)
3637 138 : ObjectAddressSet(*constrAddr, ConstraintRelationId, ccoid);
3638 :
3639 : /*
3640 : * Return the compiled constraint expression so the calling routine can
3641 : * perform any additional required tests.
3642 : */
3643 700 : return ccbin;
3644 : }
3645 :
3646 : /* Parser pre_columnref_hook for domain CHECK constraint parsing */
3647 : static Node *
3648 810 : replace_domain_constraint_value(ParseState *pstate, ColumnRef *cref)
3649 : {
3650 : /*
3651 : * Check for a reference to "value", and if that's what it is, replace
3652 : * with a CoerceToDomainValue as prepared for us by
3653 : * domainAddCheckConstraint. (We handle VALUE as a name, not a keyword, to
3654 : * avoid breaking a lot of applications that have used VALUE as a column
3655 : * name in the past.)
3656 : */
3657 810 : if (list_length(cref->fields) == 1)
3658 : {
3659 810 : Node *field1 = (Node *) linitial(cref->fields);
3660 : char *colname;
3661 :
3662 810 : colname = strVal(field1);
3663 810 : if (strcmp(colname, "value") == 0)
3664 : {
3665 810 : CoerceToDomainValue *domVal = copyObject(pstate->p_ref_hook_state);
3666 :
3667 : /* Propagate location knowledge, if any */
3668 810 : domVal->location = cref->location;
3669 810 : return (Node *) domVal;
3670 : }
3671 : }
3672 0 : return NULL;
3673 : }
3674 :
3675 : /*
3676 : * domainAddNotNullConstraint - code shared between CREATE and ALTER DOMAIN
3677 : */
3678 : static void
3679 130 : domainAddNotNullConstraint(Oid domainOid, Oid domainNamespace, Oid baseTypeOid,
3680 : int typMod, Constraint *constr,
3681 : const char *domainName, ObjectAddress *constrAddr)
3682 : {
3683 : Oid ccoid;
3684 :
3685 : Assert(constr->contype == CONSTR_NOTNULL);
3686 :
3687 : /*
3688 : * Assign or validate constraint name
3689 : */
3690 130 : if (constr->conname)
3691 : {
3692 14 : if (ConstraintNameIsUsed(CONSTRAINT_DOMAIN,
3693 : domainOid,
3694 14 : constr->conname))
3695 0 : ereport(ERROR,
3696 : (errcode(ERRCODE_DUPLICATE_OBJECT),
3697 : errmsg("constraint \"%s\" for domain \"%s\" already exists",
3698 : constr->conname, domainName)));
3699 : }
3700 : else
3701 116 : constr->conname = ChooseConstraintName(domainName,
3702 : NULL,
3703 : "not_null",
3704 : domainNamespace,
3705 : NIL);
3706 :
3707 : /*
3708 : * Store the constraint in pg_constraint
3709 : */
3710 : ccoid =
3711 130 : CreateConstraintEntry(constr->conname, /* Constraint Name */
3712 : domainNamespace, /* namespace */
3713 : CONSTRAINT_NOTNULL, /* Constraint Type */
3714 : false, /* Is Deferrable */
3715 : false, /* Is Deferred */
3716 : true, /* Is Enforced */
3717 130 : !constr->skip_validation, /* Is Validated */
3718 : InvalidOid, /* no parent constraint */
3719 : InvalidOid, /* not a relation constraint */
3720 : NULL,
3721 : 0,
3722 : 0,
3723 : domainOid, /* domain constraint */
3724 : InvalidOid, /* no associated index */
3725 : InvalidOid, /* Foreign key fields */
3726 : NULL,
3727 : NULL,
3728 : NULL,
3729 : NULL,
3730 : 0,
3731 : ' ',
3732 : ' ',
3733 : NULL,
3734 : 0,
3735 : ' ',
3736 : NULL, /* not an exclusion constraint */
3737 : NULL,
3738 : NULL,
3739 : true, /* is local */
3740 : 0, /* inhcount */
3741 : false, /* connoinherit */
3742 : false, /* conperiod */
3743 130 : false); /* is_internal */
3744 :
3745 130 : if (constrAddr)
3746 24 : ObjectAddressSet(*constrAddr, ConstraintRelationId, ccoid);
3747 130 : }
3748 :
3749 :
3750 : /*
3751 : * Execute ALTER TYPE RENAME
3752 : */
3753 : ObjectAddress
3754 32 : RenameType(RenameStmt *stmt)
3755 : {
3756 32 : List *names = castNode(List, stmt->object);
3757 32 : const char *newTypeName = stmt->newname;
3758 : TypeName *typename;
3759 : Oid typeOid;
3760 : Relation rel;
3761 : HeapTuple tup;
3762 : Form_pg_type typTup;
3763 : ObjectAddress address;
3764 :
3765 : /* Make a TypeName so we can use standard type lookup machinery */
3766 32 : typename = makeTypeNameFromNameList(names);
3767 32 : typeOid = typenameTypeId(NULL, typename);
3768 :
3769 : /* Look up the type in the type table */
3770 32 : rel = table_open(TypeRelationId, RowExclusiveLock);
3771 :
3772 32 : tup = SearchSysCacheCopy1(TYPEOID, ObjectIdGetDatum(typeOid));
3773 32 : if (!HeapTupleIsValid(tup))
3774 0 : elog(ERROR, "cache lookup failed for type %u", typeOid);
3775 32 : typTup = (Form_pg_type) GETSTRUCT(tup);
3776 :
3777 : /* check permissions on type */
3778 32 : if (!object_ownercheck(TypeRelationId, typeOid, GetUserId()))
3779 0 : aclcheck_error_type(ACLCHECK_NOT_OWNER, typeOid);
3780 :
3781 : /* ALTER DOMAIN used on a non-domain? */
3782 32 : if (stmt->renameType == OBJECT_DOMAIN && typTup->typtype != TYPTYPE_DOMAIN)
3783 0 : ereport(ERROR,
3784 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
3785 : errmsg("%s is not a domain",
3786 : format_type_be(typeOid))));
3787 :
3788 : /*
3789 : * If it's a composite type, we need to check that it really is a
3790 : * free-standing composite type, and not a table's rowtype. We want people
3791 : * to use ALTER TABLE not ALTER TYPE for that case.
3792 : */
3793 34 : if (typTup->typtype == TYPTYPE_COMPOSITE &&
3794 2 : get_rel_relkind(typTup->typrelid) != RELKIND_COMPOSITE_TYPE)
3795 0 : ereport(ERROR,
3796 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
3797 : errmsg("%s is a table's row type",
3798 : format_type_be(typeOid)),
3799 : /* translator: %s is an SQL ALTER command */
3800 : errhint("Use %s instead.",
3801 : "ALTER TABLE")));
3802 :
3803 : /* don't allow direct alteration of array types, either */
3804 32 : if (IsTrueArrayType(typTup))
3805 0 : ereport(ERROR,
3806 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
3807 : errmsg("cannot alter array type %s",
3808 : format_type_be(typeOid)),
3809 : errhint("You can alter type %s, which will alter the array type as well.",
3810 : format_type_be(typTup->typelem))));
3811 :
3812 : /* we do allow separate renaming of multirange types, though */
3813 :
3814 : /*
3815 : * If type is composite we need to rename associated pg_class entry too.
3816 : * RenameRelationInternal will call RenameTypeInternal automatically.
3817 : */
3818 32 : if (typTup->typtype == TYPTYPE_COMPOSITE)
3819 2 : RenameRelationInternal(typTup->typrelid, newTypeName, false, false);
3820 : else
3821 30 : RenameTypeInternal(typeOid, newTypeName,
3822 : typTup->typnamespace);
3823 :
3824 32 : ObjectAddressSet(address, TypeRelationId, typeOid);
3825 : /* Clean up */
3826 32 : table_close(rel, RowExclusiveLock);
3827 :
3828 32 : return address;
3829 : }
3830 :
3831 : /*
3832 : * Change the owner of a type.
3833 : */
3834 : ObjectAddress
3835 132 : AlterTypeOwner(List *names, Oid newOwnerId, ObjectType objecttype)
3836 : {
3837 : TypeName *typename;
3838 : Oid typeOid;
3839 : Relation rel;
3840 : HeapTuple tup;
3841 : HeapTuple newtup;
3842 : Form_pg_type typTup;
3843 : AclResult aclresult;
3844 : ObjectAddress address;
3845 :
3846 132 : rel = table_open(TypeRelationId, RowExclusiveLock);
3847 :
3848 : /* Make a TypeName so we can use standard type lookup machinery */
3849 132 : typename = makeTypeNameFromNameList(names);
3850 :
3851 : /* Use LookupTypeName here so that shell types can be processed */
3852 132 : tup = LookupTypeName(NULL, typename, NULL, false);
3853 132 : if (tup == NULL)
3854 0 : ereport(ERROR,
3855 : (errcode(ERRCODE_UNDEFINED_OBJECT),
3856 : errmsg("type \"%s\" does not exist",
3857 : TypeNameToString(typename))));
3858 132 : typeOid = typeTypeId(tup);
3859 :
3860 : /* Copy the syscache entry so we can scribble on it below */
3861 132 : newtup = heap_copytuple(tup);
3862 132 : ReleaseSysCache(tup);
3863 132 : tup = newtup;
3864 132 : typTup = (Form_pg_type) GETSTRUCT(tup);
3865 :
3866 : /* Don't allow ALTER DOMAIN on a type */
3867 132 : if (objecttype == OBJECT_DOMAIN && typTup->typtype != TYPTYPE_DOMAIN)
3868 0 : ereport(ERROR,
3869 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
3870 : errmsg("%s is not a domain",
3871 : format_type_be(typeOid))));
3872 :
3873 : /*
3874 : * If it's a composite type, we need to check that it really is a
3875 : * free-standing composite type, and not a table's rowtype. We want people
3876 : * to use ALTER TABLE not ALTER TYPE for that case.
3877 : */
3878 164 : if (typTup->typtype == TYPTYPE_COMPOSITE &&
3879 32 : get_rel_relkind(typTup->typrelid) != RELKIND_COMPOSITE_TYPE)
3880 0 : ereport(ERROR,
3881 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
3882 : errmsg("%s is a table's row type",
3883 : format_type_be(typeOid)),
3884 : /* translator: %s is an SQL ALTER command */
3885 : errhint("Use %s instead.",
3886 : "ALTER TABLE")));
3887 :
3888 : /* don't allow direct alteration of array types, either */
3889 132 : if (IsTrueArrayType(typTup))
3890 0 : ereport(ERROR,
3891 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
3892 : errmsg("cannot alter array type %s",
3893 : format_type_be(typeOid)),
3894 : errhint("You can alter type %s, which will alter the array type as well.",
3895 : format_type_be(typTup->typelem))));
3896 :
3897 : /* don't allow direct alteration of multirange types, either */
3898 132 : if (typTup->typtype == TYPTYPE_MULTIRANGE)
3899 : {
3900 6 : Oid rangetype = get_multirange_range(typeOid);
3901 :
3902 : /* We don't expect get_multirange_range to fail, but cope if so */
3903 6 : ereport(ERROR,
3904 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
3905 : errmsg("cannot alter multirange type %s",
3906 : format_type_be(typeOid)),
3907 : OidIsValid(rangetype) ?
3908 : errhint("You can alter type %s, which will alter the multirange type as well.",
3909 : format_type_be(rangetype)) : 0));
3910 : }
3911 :
3912 : /*
3913 : * If the new owner is the same as the existing owner, consider the
3914 : * command to have succeeded. This is for dump restoration purposes.
3915 : */
3916 126 : if (typTup->typowner != newOwnerId)
3917 : {
3918 : /* Superusers can always do it */
3919 6 : if (!superuser())
3920 : {
3921 : /* Otherwise, must be owner of the existing object */
3922 0 : if (!object_ownercheck(TypeRelationId, typTup->oid, GetUserId()))
3923 0 : aclcheck_error_type(ACLCHECK_NOT_OWNER, typTup->oid);
3924 :
3925 : /* Must be able to become new owner */
3926 0 : check_can_set_role(GetUserId(), newOwnerId);
3927 :
3928 : /* New owner must have CREATE privilege on namespace */
3929 0 : aclresult = object_aclcheck(NamespaceRelationId, typTup->typnamespace,
3930 : newOwnerId,
3931 : ACL_CREATE);
3932 0 : if (aclresult != ACLCHECK_OK)
3933 0 : aclcheck_error(aclresult, OBJECT_SCHEMA,
3934 0 : get_namespace_name(typTup->typnamespace));
3935 : }
3936 :
3937 6 : AlterTypeOwner_oid(typeOid, newOwnerId, true);
3938 : }
3939 :
3940 126 : ObjectAddressSet(address, TypeRelationId, typeOid);
3941 :
3942 : /* Clean up */
3943 126 : table_close(rel, RowExclusiveLock);
3944 :
3945 126 : return address;
3946 : }
3947 :
3948 : /*
3949 : * AlterTypeOwner_oid - change type owner unconditionally
3950 : *
3951 : * This function recurses to handle dependent types (arrays and multiranges).
3952 : * It invokes any necessary access object hooks. If hasDependEntry is true,
3953 : * this function modifies the pg_shdepend entry appropriately (this should be
3954 : * passed as false only for table rowtypes and dependent types).
3955 : *
3956 : * This is used by ALTER TABLE/TYPE OWNER commands, as well as by REASSIGN
3957 : * OWNED BY. It assumes the caller has done all needed checks.
3958 : */
3959 : void
3960 26 : AlterTypeOwner_oid(Oid typeOid, Oid newOwnerId, bool hasDependEntry)
3961 : {
3962 : Relation rel;
3963 : HeapTuple tup;
3964 : Form_pg_type typTup;
3965 :
3966 26 : rel = table_open(TypeRelationId, RowExclusiveLock);
3967 :
3968 26 : tup = SearchSysCache1(TYPEOID, ObjectIdGetDatum(typeOid));
3969 26 : if (!HeapTupleIsValid(tup))
3970 0 : elog(ERROR, "cache lookup failed for type %u", typeOid);
3971 26 : typTup = (Form_pg_type) GETSTRUCT(tup);
3972 :
3973 : /*
3974 : * If it's a composite type, invoke ATExecChangeOwner so that we fix up
3975 : * the pg_class entry properly. That will call back to
3976 : * AlterTypeOwnerInternal to take care of the pg_type entry(s).
3977 : */
3978 26 : if (typTup->typtype == TYPTYPE_COMPOSITE)
3979 8 : ATExecChangeOwner(typTup->typrelid, newOwnerId, true, AccessExclusiveLock);
3980 : else
3981 18 : AlterTypeOwnerInternal(typeOid, newOwnerId);
3982 :
3983 : /* Update owner dependency reference */
3984 26 : if (hasDependEntry)
3985 26 : changeDependencyOnOwner(TypeRelationId, typeOid, newOwnerId);
3986 :
3987 26 : InvokeObjectPostAlterHook(TypeRelationId, typeOid, 0);
3988 :
3989 26 : ReleaseSysCache(tup);
3990 26 : table_close(rel, RowExclusiveLock);
3991 26 : }
3992 :
3993 : /*
3994 : * AlterTypeOwnerInternal - bare-bones type owner change.
3995 : *
3996 : * This routine simply modifies the owner of a pg_type entry, and recurses
3997 : * to handle any dependent types.
3998 : */
3999 : void
4000 660 : AlterTypeOwnerInternal(Oid typeOid, Oid newOwnerId)
4001 : {
4002 : Relation rel;
4003 : HeapTuple tup;
4004 : Form_pg_type typTup;
4005 : Datum repl_val[Natts_pg_type];
4006 : bool repl_null[Natts_pg_type];
4007 : bool repl_repl[Natts_pg_type];
4008 : Acl *newAcl;
4009 : Datum aclDatum;
4010 : bool isNull;
4011 :
4012 660 : rel = table_open(TypeRelationId, RowExclusiveLock);
4013 :
4014 660 : tup = SearchSysCacheCopy1(TYPEOID, ObjectIdGetDatum(typeOid));
4015 660 : if (!HeapTupleIsValid(tup))
4016 0 : elog(ERROR, "cache lookup failed for type %u", typeOid);
4017 660 : typTup = (Form_pg_type) GETSTRUCT(tup);
4018 :
4019 660 : memset(repl_null, false, sizeof(repl_null));
4020 660 : memset(repl_repl, false, sizeof(repl_repl));
4021 :
4022 660 : repl_repl[Anum_pg_type_typowner - 1] = true;
4023 660 : repl_val[Anum_pg_type_typowner - 1] = ObjectIdGetDatum(newOwnerId);
4024 :
4025 660 : aclDatum = heap_getattr(tup,
4026 : Anum_pg_type_typacl,
4027 : RelationGetDescr(rel),
4028 : &isNull);
4029 : /* Null ACLs do not require changes */
4030 660 : if (!isNull)
4031 : {
4032 2 : newAcl = aclnewowner(DatumGetAclP(aclDatum),
4033 : typTup->typowner, newOwnerId);
4034 2 : repl_repl[Anum_pg_type_typacl - 1] = true;
4035 2 : repl_val[Anum_pg_type_typacl - 1] = PointerGetDatum(newAcl);
4036 : }
4037 :
4038 660 : tup = heap_modify_tuple(tup, RelationGetDescr(rel), repl_val, repl_null,
4039 : repl_repl);
4040 :
4041 660 : CatalogTupleUpdate(rel, &tup->t_self, tup);
4042 :
4043 : /* If it has an array type, update that too */
4044 660 : if (OidIsValid(typTup->typarray))
4045 330 : AlterTypeOwnerInternal(typTup->typarray, newOwnerId);
4046 :
4047 : /* If it is a range type, update the associated multirange too */
4048 660 : if (typTup->typtype == TYPTYPE_RANGE)
4049 : {
4050 12 : Oid multirange_typeid = get_range_multirange(typeOid);
4051 :
4052 12 : if (!OidIsValid(multirange_typeid))
4053 0 : ereport(ERROR,
4054 : (errcode(ERRCODE_UNDEFINED_OBJECT),
4055 : errmsg("could not find multirange type for data type %s",
4056 : format_type_be(typeOid))));
4057 12 : AlterTypeOwnerInternal(multirange_typeid, newOwnerId);
4058 : }
4059 :
4060 : /* Clean up */
4061 660 : table_close(rel, RowExclusiveLock);
4062 660 : }
4063 :
4064 : /*
4065 : * Execute ALTER TYPE SET SCHEMA
4066 : */
4067 : ObjectAddress
4068 18 : AlterTypeNamespace(List *names, const char *newschema, ObjectType objecttype,
4069 : Oid *oldschema)
4070 : {
4071 : TypeName *typename;
4072 : Oid typeOid;
4073 : Oid nspOid;
4074 : Oid oldNspOid;
4075 : ObjectAddresses *objsMoved;
4076 : ObjectAddress myself;
4077 :
4078 : /* Make a TypeName so we can use standard type lookup machinery */
4079 18 : typename = makeTypeNameFromNameList(names);
4080 18 : typeOid = typenameTypeId(NULL, typename);
4081 :
4082 : /* Don't allow ALTER DOMAIN on a non-domain type */
4083 18 : if (objecttype == OBJECT_DOMAIN && get_typtype(typeOid) != TYPTYPE_DOMAIN)
4084 0 : ereport(ERROR,
4085 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
4086 : errmsg("%s is not a domain",
4087 : format_type_be(typeOid))));
4088 :
4089 : /* get schema OID and check its permissions */
4090 18 : nspOid = LookupCreationNamespace(newschema);
4091 :
4092 18 : objsMoved = new_object_addresses();
4093 18 : oldNspOid = AlterTypeNamespace_oid(typeOid, nspOid, false, objsMoved);
4094 18 : free_object_addresses(objsMoved);
4095 :
4096 18 : if (oldschema)
4097 18 : *oldschema = oldNspOid;
4098 :
4099 18 : ObjectAddressSet(myself, TypeRelationId, typeOid);
4100 :
4101 18 : return myself;
4102 : }
4103 :
4104 : /*
4105 : * ALTER TYPE SET SCHEMA, where the caller has already looked up the OIDs
4106 : * of the type and the target schema and checked the schema's privileges.
4107 : *
4108 : * If ignoreDependent is true, we silently ignore dependent types
4109 : * (array types and table rowtypes) rather than raising errors.
4110 : *
4111 : * This entry point is exported for use by AlterObjectNamespace_oid,
4112 : * which doesn't want errors when it passes OIDs of dependent types.
4113 : *
4114 : * Returns the type's old namespace OID, or InvalidOid if we did nothing.
4115 : */
4116 : Oid
4117 34 : AlterTypeNamespace_oid(Oid typeOid, Oid nspOid, bool ignoreDependent,
4118 : ObjectAddresses *objsMoved)
4119 : {
4120 : Oid elemOid;
4121 :
4122 : /* check permissions on type */
4123 34 : if (!object_ownercheck(TypeRelationId, typeOid, GetUserId()))
4124 0 : aclcheck_error_type(ACLCHECK_NOT_OWNER, typeOid);
4125 :
4126 : /* don't allow direct alteration of array types */
4127 34 : elemOid = get_element_type(typeOid);
4128 34 : if (OidIsValid(elemOid) && get_array_type(elemOid) == typeOid)
4129 : {
4130 8 : if (ignoreDependent)
4131 8 : return InvalidOid;
4132 0 : ereport(ERROR,
4133 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
4134 : errmsg("cannot alter array type %s",
4135 : format_type_be(typeOid)),
4136 : errhint("You can alter type %s, which will alter the array type as well.",
4137 : format_type_be(elemOid))));
4138 : }
4139 :
4140 : /* and do the work */
4141 26 : return AlterTypeNamespaceInternal(typeOid, nspOid,
4142 : false, /* isImplicitArray */
4143 : ignoreDependent, /* ignoreDependent */
4144 : true, /* errorOnTableType */
4145 : objsMoved);
4146 : }
4147 :
4148 : /*
4149 : * Move specified type to new namespace.
4150 : *
4151 : * Caller must have already checked privileges.
4152 : *
4153 : * The function automatically recurses to process the type's array type,
4154 : * if any. isImplicitArray should be true only when doing this internal
4155 : * recursion (outside callers must never try to move an array type directly).
4156 : *
4157 : * If ignoreDependent is true, we silently don't process table types.
4158 : *
4159 : * If errorOnTableType is true, the function errors out if the type is
4160 : * a table type. ALTER TABLE has to be used to move a table to a new
4161 : * namespace. (This flag is ignored if ignoreDependent is true.)
4162 : *
4163 : * We also do nothing if the type is already listed in *objsMoved.
4164 : * After a successful move, we add the type to *objsMoved.
4165 : *
4166 : * Returns the type's old namespace OID, or InvalidOid if we did nothing.
4167 : */
4168 : Oid
4169 218 : AlterTypeNamespaceInternal(Oid typeOid, Oid nspOid,
4170 : bool isImplicitArray,
4171 : bool ignoreDependent,
4172 : bool errorOnTableType,
4173 : ObjectAddresses *objsMoved)
4174 : {
4175 : Relation rel;
4176 : HeapTuple tup;
4177 : Form_pg_type typform;
4178 : Oid oldNspOid;
4179 : Oid arrayOid;
4180 : bool isCompositeType;
4181 : ObjectAddress thisobj;
4182 :
4183 : /*
4184 : * Make sure we haven't moved this object previously.
4185 : */
4186 218 : thisobj.classId = TypeRelationId;
4187 218 : thisobj.objectId = typeOid;
4188 218 : thisobj.objectSubId = 0;
4189 :
4190 218 : if (object_address_present(&thisobj, objsMoved))
4191 0 : return InvalidOid;
4192 :
4193 218 : rel = table_open(TypeRelationId, RowExclusiveLock);
4194 :
4195 218 : tup = SearchSysCacheCopy1(TYPEOID, ObjectIdGetDatum(typeOid));
4196 218 : if (!HeapTupleIsValid(tup))
4197 0 : elog(ERROR, "cache lookup failed for type %u", typeOid);
4198 218 : typform = (Form_pg_type) GETSTRUCT(tup);
4199 :
4200 218 : oldNspOid = typform->typnamespace;
4201 218 : arrayOid = typform->typarray;
4202 :
4203 : /* If the type is already there, we scan skip these next few checks. */
4204 218 : if (oldNspOid != nspOid)
4205 : {
4206 : /* common checks on switching namespaces */
4207 182 : CheckSetNamespace(oldNspOid, nspOid);
4208 :
4209 : /* check for duplicate name (more friendly than unique-index failure) */
4210 182 : if (SearchSysCacheExists2(TYPENAMENSP,
4211 : NameGetDatum(&typform->typname),
4212 : ObjectIdGetDatum(nspOid)))
4213 0 : ereport(ERROR,
4214 : (errcode(ERRCODE_DUPLICATE_OBJECT),
4215 : errmsg("type \"%s\" already exists in schema \"%s\"",
4216 : NameStr(typform->typname),
4217 : get_namespace_name(nspOid))));
4218 : }
4219 :
4220 : /* Detect whether type is a composite type (but not a table rowtype) */
4221 218 : isCompositeType =
4222 318 : (typform->typtype == TYPTYPE_COMPOSITE &&
4223 100 : get_rel_relkind(typform->typrelid) == RELKIND_COMPOSITE_TYPE);
4224 :
4225 : /* Enforce not-table-type if requested */
4226 218 : if (typform->typtype == TYPTYPE_COMPOSITE && !isCompositeType)
4227 : {
4228 86 : if (ignoreDependent)
4229 : {
4230 2 : table_close(rel, RowExclusiveLock);
4231 2 : return InvalidOid;
4232 : }
4233 84 : if (errorOnTableType)
4234 0 : ereport(ERROR,
4235 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
4236 : errmsg("%s is a table's row type",
4237 : format_type_be(typeOid)),
4238 : /* translator: %s is an SQL ALTER command */
4239 : errhint("Use %s instead.", "ALTER TABLE")));
4240 : }
4241 :
4242 216 : if (oldNspOid != nspOid)
4243 : {
4244 : /* OK, modify the pg_type row */
4245 :
4246 : /* tup is a copy, so we can scribble directly on it */
4247 180 : typform->typnamespace = nspOid;
4248 :
4249 180 : CatalogTupleUpdate(rel, &tup->t_self, tup);
4250 : }
4251 :
4252 : /*
4253 : * Composite types have pg_class entries.
4254 : *
4255 : * We need to modify the pg_class tuple as well to reflect the change of
4256 : * schema.
4257 : */
4258 216 : if (isCompositeType)
4259 : {
4260 : Relation classRel;
4261 :
4262 14 : classRel = table_open(RelationRelationId, RowExclusiveLock);
4263 :
4264 14 : AlterRelationNamespaceInternal(classRel, typform->typrelid,
4265 : oldNspOid, nspOid,
4266 : false, objsMoved);
4267 :
4268 14 : table_close(classRel, RowExclusiveLock);
4269 :
4270 : /*
4271 : * Check for constraints associated with the composite type (we don't
4272 : * currently support this, but probably will someday).
4273 : */
4274 14 : AlterConstraintNamespaces(typform->typrelid, oldNspOid,
4275 : nspOid, false, objsMoved);
4276 : }
4277 : else
4278 : {
4279 : /* If it's a domain, it might have constraints */
4280 202 : if (typform->typtype == TYPTYPE_DOMAIN)
4281 6 : AlterConstraintNamespaces(typeOid, oldNspOid, nspOid, true,
4282 : objsMoved);
4283 : }
4284 :
4285 : /*
4286 : * Update dependency on schema, if any --- a table rowtype has not got
4287 : * one, and neither does an implicit array.
4288 : */
4289 216 : if (oldNspOid != nspOid &&
4290 172 : (isCompositeType || typform->typtype != TYPTYPE_COMPOSITE) &&
4291 108 : !isImplicitArray)
4292 18 : if (changeDependencyFor(TypeRelationId, typeOid,
4293 : NamespaceRelationId, oldNspOid, nspOid) != 1)
4294 0 : elog(ERROR, "could not change schema dependency for type \"%s\"",
4295 : format_type_be(typeOid));
4296 :
4297 216 : InvokeObjectPostAlterHook(TypeRelationId, typeOid, 0);
4298 :
4299 216 : heap_freetuple(tup);
4300 :
4301 216 : table_close(rel, RowExclusiveLock);
4302 :
4303 216 : add_exact_object_address(&thisobj, objsMoved);
4304 :
4305 : /* Recursively alter the associated array type, if any */
4306 216 : if (OidIsValid(arrayOid))
4307 108 : AlterTypeNamespaceInternal(arrayOid, nspOid,
4308 : true, /* isImplicitArray */
4309 : false, /* ignoreDependent */
4310 : true, /* errorOnTableType */
4311 : objsMoved);
4312 :
4313 216 : return oldNspOid;
4314 : }
4315 :
4316 : /*
4317 : * AlterType
4318 : * ALTER TYPE <type> SET (option = ...)
4319 : *
4320 : * NOTE: the set of changes that can be allowed here is constrained by many
4321 : * non-obvious implementation restrictions. Tread carefully when considering
4322 : * adding new flexibility.
4323 : */
4324 : ObjectAddress
4325 60 : AlterType(AlterTypeStmt *stmt)
4326 : {
4327 : ObjectAddress address;
4328 : Relation catalog;
4329 : TypeName *typename;
4330 : HeapTuple tup;
4331 : Oid typeOid;
4332 : Form_pg_type typForm;
4333 60 : bool requireSuper = false;
4334 : AlterTypeRecurseParams atparams;
4335 : ListCell *pl;
4336 :
4337 60 : catalog = table_open(TypeRelationId, RowExclusiveLock);
4338 :
4339 : /* Make a TypeName so we can use standard type lookup machinery */
4340 60 : typename = makeTypeNameFromNameList(stmt->typeName);
4341 60 : tup = typenameType(NULL, typename, NULL);
4342 :
4343 54 : typeOid = typeTypeId(tup);
4344 54 : typForm = (Form_pg_type) GETSTRUCT(tup);
4345 :
4346 : /* Process options */
4347 54 : memset(&atparams, 0, sizeof(atparams));
4348 154 : foreach(pl, stmt->options)
4349 : {
4350 106 : DefElem *defel = (DefElem *) lfirst(pl);
4351 :
4352 106 : if (strcmp(defel->defname, "storage") == 0)
4353 : {
4354 12 : char *a = defGetString(defel);
4355 :
4356 12 : if (pg_strcasecmp(a, "plain") == 0)
4357 6 : atparams.storage = TYPSTORAGE_PLAIN;
4358 6 : else if (pg_strcasecmp(a, "external") == 0)
4359 0 : atparams.storage = TYPSTORAGE_EXTERNAL;
4360 6 : else if (pg_strcasecmp(a, "extended") == 0)
4361 6 : atparams.storage = TYPSTORAGE_EXTENDED;
4362 0 : else if (pg_strcasecmp(a, "main") == 0)
4363 0 : atparams.storage = TYPSTORAGE_MAIN;
4364 : else
4365 0 : ereport(ERROR,
4366 : (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
4367 : errmsg("storage \"%s\" not recognized", a)));
4368 :
4369 : /*
4370 : * Validate the storage request. If the type isn't varlena, it
4371 : * certainly doesn't support non-PLAIN storage.
4372 : */
4373 12 : if (atparams.storage != TYPSTORAGE_PLAIN && typForm->typlen != -1)
4374 0 : ereport(ERROR,
4375 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
4376 : errmsg("fixed-size types must have storage PLAIN")));
4377 :
4378 : /*
4379 : * Switching from PLAIN to non-PLAIN is allowed, but it requires
4380 : * superuser, since we can't validate that the type's C functions
4381 : * will support it. Switching from non-PLAIN to PLAIN is
4382 : * disallowed outright, because it's not practical to ensure that
4383 : * no tables have toasted values of the type. Switching among
4384 : * different non-PLAIN settings is OK, since it just constitutes a
4385 : * change in the strategy requested for columns created in the
4386 : * future.
4387 : */
4388 12 : if (atparams.storage != TYPSTORAGE_PLAIN &&
4389 6 : typForm->typstorage == TYPSTORAGE_PLAIN)
4390 0 : requireSuper = true;
4391 12 : else if (atparams.storage == TYPSTORAGE_PLAIN &&
4392 6 : typForm->typstorage != TYPSTORAGE_PLAIN)
4393 6 : ereport(ERROR,
4394 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
4395 : errmsg("cannot change type's storage to PLAIN")));
4396 :
4397 6 : atparams.updateStorage = true;
4398 : }
4399 94 : else if (strcmp(defel->defname, "receive") == 0)
4400 : {
4401 28 : if (defel->arg != NULL)
4402 28 : atparams.receiveOid =
4403 28 : findTypeReceiveFunction(defGetQualifiedName(defel),
4404 : typeOid);
4405 : else
4406 0 : atparams.receiveOid = InvalidOid; /* NONE, remove function */
4407 28 : atparams.updateReceive = true;
4408 : /* Replacing an I/O function requires superuser. */
4409 28 : requireSuper = true;
4410 : }
4411 66 : else if (strcmp(defel->defname, "send") == 0)
4412 : {
4413 28 : if (defel->arg != NULL)
4414 28 : atparams.sendOid =
4415 28 : findTypeSendFunction(defGetQualifiedName(defel),
4416 : typeOid);
4417 : else
4418 0 : atparams.sendOid = InvalidOid; /* NONE, remove function */
4419 28 : atparams.updateSend = true;
4420 : /* Replacing an I/O function requires superuser. */
4421 28 : requireSuper = true;
4422 : }
4423 38 : else if (strcmp(defel->defname, "typmod_in") == 0)
4424 : {
4425 6 : if (defel->arg != NULL)
4426 6 : atparams.typmodinOid =
4427 6 : findTypeTypmodinFunction(defGetQualifiedName(defel));
4428 : else
4429 0 : atparams.typmodinOid = InvalidOid; /* NONE, remove function */
4430 6 : atparams.updateTypmodin = true;
4431 : /* Replacing an I/O function requires superuser. */
4432 6 : requireSuper = true;
4433 : }
4434 32 : else if (strcmp(defel->defname, "typmod_out") == 0)
4435 : {
4436 6 : if (defel->arg != NULL)
4437 6 : atparams.typmodoutOid =
4438 6 : findTypeTypmodoutFunction(defGetQualifiedName(defel));
4439 : else
4440 0 : atparams.typmodoutOid = InvalidOid; /* NONE, remove function */
4441 6 : atparams.updateTypmodout = true;
4442 : /* Replacing an I/O function requires superuser. */
4443 6 : requireSuper = true;
4444 : }
4445 26 : else if (strcmp(defel->defname, "analyze") == 0)
4446 : {
4447 6 : if (defel->arg != NULL)
4448 6 : atparams.analyzeOid =
4449 6 : findTypeAnalyzeFunction(defGetQualifiedName(defel),
4450 : typeOid);
4451 : else
4452 0 : atparams.analyzeOid = InvalidOid; /* NONE, remove function */
4453 6 : atparams.updateAnalyze = true;
4454 : /* Replacing an analyze function requires superuser. */
4455 6 : requireSuper = true;
4456 : }
4457 20 : else if (strcmp(defel->defname, "subscript") == 0)
4458 : {
4459 20 : if (defel->arg != NULL)
4460 20 : atparams.subscriptOid =
4461 20 : findTypeSubscriptingFunction(defGetQualifiedName(defel),
4462 : typeOid);
4463 : else
4464 0 : atparams.subscriptOid = InvalidOid; /* NONE, remove function */
4465 20 : atparams.updateSubscript = true;
4466 : /* Replacing a subscript function requires superuser. */
4467 20 : requireSuper = true;
4468 : }
4469 :
4470 : /*
4471 : * The rest of the options that CREATE accepts cannot be changed.
4472 : * Check for them so that we can give a meaningful error message.
4473 : */
4474 0 : else if (strcmp(defel->defname, "input") == 0 ||
4475 0 : strcmp(defel->defname, "output") == 0 ||
4476 0 : strcmp(defel->defname, "internallength") == 0 ||
4477 0 : strcmp(defel->defname, "passedbyvalue") == 0 ||
4478 0 : strcmp(defel->defname, "alignment") == 0 ||
4479 0 : strcmp(defel->defname, "like") == 0 ||
4480 0 : strcmp(defel->defname, "category") == 0 ||
4481 0 : strcmp(defel->defname, "preferred") == 0 ||
4482 0 : strcmp(defel->defname, "default") == 0 ||
4483 0 : strcmp(defel->defname, "element") == 0 ||
4484 0 : strcmp(defel->defname, "delimiter") == 0 ||
4485 0 : strcmp(defel->defname, "collatable") == 0)
4486 0 : ereport(ERROR,
4487 : (errcode(ERRCODE_SYNTAX_ERROR),
4488 : errmsg("type attribute \"%s\" cannot be changed",
4489 : defel->defname)));
4490 : else
4491 0 : ereport(ERROR,
4492 : (errcode(ERRCODE_SYNTAX_ERROR),
4493 : errmsg("type attribute \"%s\" not recognized",
4494 : defel->defname)));
4495 : }
4496 :
4497 : /*
4498 : * Permissions check. Require superuser if we decided the command
4499 : * requires that, else must own the type.
4500 : */
4501 48 : if (requireSuper)
4502 : {
4503 42 : if (!superuser())
4504 0 : ereport(ERROR,
4505 : (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
4506 : errmsg("must be superuser to alter a type")));
4507 : }
4508 : else
4509 : {
4510 6 : if (!object_ownercheck(TypeRelationId, typeOid, GetUserId()))
4511 0 : aclcheck_error_type(ACLCHECK_NOT_OWNER, typeOid);
4512 : }
4513 :
4514 : /*
4515 : * We disallow all forms of ALTER TYPE SET on types that aren't plain base
4516 : * types. It would for example be highly unsafe, not to mention
4517 : * pointless, to change the send/receive functions for a composite type.
4518 : * Moreover, pg_dump has no support for changing these properties on
4519 : * non-base types. We might weaken this someday, but not now.
4520 : *
4521 : * Note: if you weaken this enough to allow composite types, be sure to
4522 : * adjust the GenerateTypeDependencies call in AlterTypeRecurse.
4523 : */
4524 48 : if (typForm->typtype != TYPTYPE_BASE)
4525 0 : ereport(ERROR,
4526 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
4527 : errmsg("%s is not a base type",
4528 : format_type_be(typeOid))));
4529 :
4530 : /*
4531 : * For the same reasons, don't allow direct alteration of array types.
4532 : */
4533 48 : if (IsTrueArrayType(typForm))
4534 0 : ereport(ERROR,
4535 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
4536 : errmsg("%s is not a base type",
4537 : format_type_be(typeOid))));
4538 :
4539 : /* OK, recursively update this type and any arrays/domains over it */
4540 48 : AlterTypeRecurse(typeOid, false, tup, catalog, &atparams);
4541 :
4542 : /* Clean up */
4543 48 : ReleaseSysCache(tup);
4544 :
4545 48 : table_close(catalog, RowExclusiveLock);
4546 :
4547 48 : ObjectAddressSet(address, TypeRelationId, typeOid);
4548 :
4549 48 : return address;
4550 : }
4551 :
4552 : /*
4553 : * AlterTypeRecurse: one recursion step for AlterType()
4554 : *
4555 : * Apply the changes specified by "atparams" to the type identified by
4556 : * "typeOid", whose existing pg_type tuple is "tup". If necessary,
4557 : * recursively update its array type as well. Then search for any domains
4558 : * over this type, and recursively apply (most of) the same changes to those
4559 : * domains.
4560 : *
4561 : * We need this because the system generally assumes that a domain inherits
4562 : * many properties from its base type. See DefineDomain() above for details
4563 : * of what is inherited. Arrays inherit a smaller number of properties,
4564 : * but not none.
4565 : *
4566 : * There's a race condition here, in that some other transaction could
4567 : * concurrently add another domain atop this base type; we'd miss updating
4568 : * that one. Hence, be wary of allowing ALTER TYPE to change properties for
4569 : * which it'd be really fatal for a domain to be out of sync with its base
4570 : * type (typlen, for example). In practice, races seem unlikely to be an
4571 : * issue for plausible use-cases for ALTER TYPE. If one does happen, it could
4572 : * be fixed by re-doing the same ALTER TYPE once all prior transactions have
4573 : * committed.
4574 : */
4575 : static void
4576 66 : AlterTypeRecurse(Oid typeOid, bool isImplicitArray,
4577 : HeapTuple tup, Relation catalog,
4578 : AlterTypeRecurseParams *atparams)
4579 : {
4580 : Datum values[Natts_pg_type];
4581 : bool nulls[Natts_pg_type];
4582 : bool replaces[Natts_pg_type];
4583 : HeapTuple newtup;
4584 : SysScanDesc scan;
4585 : ScanKeyData key[1];
4586 : HeapTuple domainTup;
4587 :
4588 : /* Since this function recurses, it could be driven to stack overflow */
4589 66 : check_stack_depth();
4590 :
4591 : /* Update the current type's tuple */
4592 66 : memset(values, 0, sizeof(values));
4593 66 : memset(nulls, 0, sizeof(nulls));
4594 66 : memset(replaces, 0, sizeof(replaces));
4595 :
4596 66 : if (atparams->updateStorage)
4597 : {
4598 12 : replaces[Anum_pg_type_typstorage - 1] = true;
4599 12 : values[Anum_pg_type_typstorage - 1] = CharGetDatum(atparams->storage);
4600 : }
4601 66 : if (atparams->updateReceive)
4602 : {
4603 28 : replaces[Anum_pg_type_typreceive - 1] = true;
4604 28 : values[Anum_pg_type_typreceive - 1] = ObjectIdGetDatum(atparams->receiveOid);
4605 : }
4606 66 : if (atparams->updateSend)
4607 : {
4608 34 : replaces[Anum_pg_type_typsend - 1] = true;
4609 34 : values[Anum_pg_type_typsend - 1] = ObjectIdGetDatum(atparams->sendOid);
4610 : }
4611 66 : if (atparams->updateTypmodin)
4612 : {
4613 12 : replaces[Anum_pg_type_typmodin - 1] = true;
4614 12 : values[Anum_pg_type_typmodin - 1] = ObjectIdGetDatum(atparams->typmodinOid);
4615 : }
4616 66 : if (atparams->updateTypmodout)
4617 : {
4618 12 : replaces[Anum_pg_type_typmodout - 1] = true;
4619 12 : values[Anum_pg_type_typmodout - 1] = ObjectIdGetDatum(atparams->typmodoutOid);
4620 : }
4621 66 : if (atparams->updateAnalyze)
4622 : {
4623 12 : replaces[Anum_pg_type_typanalyze - 1] = true;
4624 12 : values[Anum_pg_type_typanalyze - 1] = ObjectIdGetDatum(atparams->analyzeOid);
4625 : }
4626 66 : if (atparams->updateSubscript)
4627 : {
4628 20 : replaces[Anum_pg_type_typsubscript - 1] = true;
4629 20 : values[Anum_pg_type_typsubscript - 1] = ObjectIdGetDatum(atparams->subscriptOid);
4630 : }
4631 :
4632 66 : newtup = heap_modify_tuple(tup, RelationGetDescr(catalog),
4633 : values, nulls, replaces);
4634 :
4635 66 : CatalogTupleUpdate(catalog, &newtup->t_self, newtup);
4636 :
4637 : /* Rebuild dependencies for this type */
4638 66 : GenerateTypeDependencies(newtup,
4639 : catalog,
4640 : NULL, /* don't have defaultExpr handy */
4641 : NULL, /* don't have typacl handy */
4642 : 0, /* we rejected composite types above */
4643 : isImplicitArray, /* it might be an array */
4644 : isImplicitArray, /* dependent iff it's array */
4645 : false, /* don't touch extension membership */
4646 : true);
4647 :
4648 66 : InvokeObjectPostAlterHook(TypeRelationId, typeOid, 0);
4649 :
4650 : /*
4651 : * Arrays inherit their base type's typmodin and typmodout, but none of
4652 : * the other properties we're concerned with here. Recurse to the array
4653 : * type if needed.
4654 : */
4655 66 : if (!isImplicitArray &&
4656 60 : (atparams->updateTypmodin || atparams->updateTypmodout))
4657 : {
4658 6 : Oid arrtypoid = ((Form_pg_type) GETSTRUCT(newtup))->typarray;
4659 :
4660 6 : if (OidIsValid(arrtypoid))
4661 : {
4662 : HeapTuple arrtup;
4663 : AlterTypeRecurseParams arrparams;
4664 :
4665 6 : arrtup = SearchSysCache1(TYPEOID, ObjectIdGetDatum(arrtypoid));
4666 6 : if (!HeapTupleIsValid(arrtup))
4667 0 : elog(ERROR, "cache lookup failed for type %u", arrtypoid);
4668 :
4669 6 : memset(&arrparams, 0, sizeof(arrparams));
4670 6 : arrparams.updateTypmodin = atparams->updateTypmodin;
4671 6 : arrparams.updateTypmodout = atparams->updateTypmodout;
4672 6 : arrparams.typmodinOid = atparams->typmodinOid;
4673 6 : arrparams.typmodoutOid = atparams->typmodoutOid;
4674 :
4675 6 : AlterTypeRecurse(arrtypoid, true, arrtup, catalog, &arrparams);
4676 :
4677 6 : ReleaseSysCache(arrtup);
4678 : }
4679 : }
4680 :
4681 : /*
4682 : * Now we need to recurse to domains. However, some properties are not
4683 : * inherited by domains, so clear the update flags for those.
4684 : */
4685 66 : atparams->updateReceive = false; /* domains use F_DOMAIN_RECV */
4686 66 : atparams->updateTypmodin = false; /* domains don't have typmods */
4687 66 : atparams->updateTypmodout = false;
4688 66 : atparams->updateSubscript = false; /* domains don't have subscriptors */
4689 :
4690 : /* Skip the scan if nothing remains to be done */
4691 66 : if (!(atparams->updateStorage ||
4692 54 : atparams->updateSend ||
4693 20 : atparams->updateAnalyze))
4694 20 : return;
4695 :
4696 : /* Search pg_type for possible domains over this type */
4697 46 : ScanKeyInit(&key[0],
4698 : Anum_pg_type_typbasetype,
4699 : BTEqualStrategyNumber, F_OIDEQ,
4700 : ObjectIdGetDatum(typeOid));
4701 :
4702 46 : scan = systable_beginscan(catalog, InvalidOid, false,
4703 : NULL, 1, key);
4704 :
4705 58 : while ((domainTup = systable_getnext(scan)) != NULL)
4706 : {
4707 12 : Form_pg_type domainForm = (Form_pg_type) GETSTRUCT(domainTup);
4708 :
4709 : /*
4710 : * Shouldn't have a nonzero typbasetype in a non-domain, but let's
4711 : * check
4712 : */
4713 12 : if (domainForm->typtype != TYPTYPE_DOMAIN)
4714 0 : continue;
4715 :
4716 12 : AlterTypeRecurse(domainForm->oid, false, domainTup, catalog, atparams);
4717 : }
4718 :
4719 46 : systable_endscan(scan);
4720 : }
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