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);
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
152 402 : DefineType(ParseState *pstate, List *names, List *parameters)
153 : {
154 : char *typeName;
155 : Oid typeNamespace;
156 402 : int16 internalLength = -1; /* default: variable-length */
157 402 : List *inputName = NIL;
158 402 : List *outputName = NIL;
159 402 : List *receiveName = NIL;
160 402 : List *sendName = NIL;
161 402 : List *typmodinName = NIL;
162 402 : List *typmodoutName = NIL;
163 402 : List *analyzeName = NIL;
164 402 : List *subscriptName = NIL;
165 402 : char category = TYPCATEGORY_USER;
166 402 : bool preferred = false;
167 402 : char delimiter = DEFAULT_TYPDELIM;
168 402 : Oid elemType = InvalidOid;
169 402 : char *defaultValue = NULL;
170 402 : bool byValue = false;
171 402 : char alignment = TYPALIGN_INT; /* default alignment */
172 402 : char storage = TYPSTORAGE_PLAIN; /* default TOAST storage method */
173 402 : Oid collation = InvalidOid;
174 402 : DefElem *likeTypeEl = NULL;
175 402 : DefElem *internalLengthEl = NULL;
176 402 : DefElem *inputNameEl = NULL;
177 402 : DefElem *outputNameEl = NULL;
178 402 : DefElem *receiveNameEl = NULL;
179 402 : DefElem *sendNameEl = NULL;
180 402 : DefElem *typmodinNameEl = NULL;
181 402 : DefElem *typmodoutNameEl = NULL;
182 402 : DefElem *analyzeNameEl = NULL;
183 402 : DefElem *subscriptNameEl = NULL;
184 402 : DefElem *categoryEl = NULL;
185 402 : DefElem *preferredEl = NULL;
186 402 : DefElem *delimiterEl = NULL;
187 402 : DefElem *elemTypeEl = NULL;
188 402 : DefElem *defaultValueEl = NULL;
189 402 : DefElem *byValueEl = NULL;
190 402 : DefElem *alignmentEl = NULL;
191 402 : DefElem *storageEl = NULL;
192 402 : DefElem *collatableEl = NULL;
193 : Oid inputOid;
194 : Oid outputOid;
195 402 : Oid receiveOid = InvalidOid;
196 402 : Oid sendOid = InvalidOid;
197 402 : Oid typmodinOid = InvalidOid;
198 402 : Oid typmodoutOid = InvalidOid;
199 402 : Oid analyzeOid = InvalidOid;
200 402 : 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 : */
218 402 : 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 */
224 402 : 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 : */
238 402 : 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 : */
246 402 : 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 : */
260 396 : if (parameters == NIL)
261 : {
262 166 : if (OidIsValid(typoid))
263 6 : ereport(ERROR,
264 : (errcode(ERRCODE_DUPLICATE_OBJECT),
265 : errmsg("type \"%s\" already exists", typeName)));
266 :
267 160 : address = TypeShellMake(typeName, typeNamespace, GetUserId());
268 160 : 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 : */
275 230 : 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 1188 : foreach(pl, parameters)
283 : {
284 964 : DefElem *defel = (DefElem *) lfirst(pl);
285 : DefElem **defelp;
286 :
287 964 : if (strcmp(defel->defname, "like") == 0)
288 56 : defelp = &likeTypeEl;
289 908 : else if (strcmp(defel->defname, "internallength") == 0)
290 146 : defelp = &internalLengthEl;
291 762 : else if (strcmp(defel->defname, "input") == 0)
292 218 : defelp = &inputNameEl;
293 544 : else if (strcmp(defel->defname, "output") == 0)
294 218 : defelp = &outputNameEl;
295 326 : else if (strcmp(defel->defname, "receive") == 0)
296 18 : defelp = &receiveNameEl;
297 308 : else if (strcmp(defel->defname, "send") == 0)
298 18 : defelp = &sendNameEl;
299 290 : else if (strcmp(defel->defname, "typmod_in") == 0)
300 10 : defelp = &typmodinNameEl;
301 280 : else if (strcmp(defel->defname, "typmod_out") == 0)
302 10 : defelp = &typmodoutNameEl;
303 270 : else if (strcmp(defel->defname, "analyze") == 0 ||
304 270 : strcmp(defel->defname, "analyse") == 0)
305 0 : defelp = &analyzeNameEl;
306 270 : else if (strcmp(defel->defname, "subscript") == 0)
307 4 : defelp = &subscriptNameEl;
308 266 : else if (strcmp(defel->defname, "category") == 0)
309 14 : defelp = &categoryEl;
310 252 : else if (strcmp(defel->defname, "preferred") == 0)
311 14 : defelp = &preferredEl;
312 238 : else if (strcmp(defel->defname, "delimiter") == 0)
313 0 : defelp = &delimiterEl;
314 238 : else if (strcmp(defel->defname, "element") == 0)
315 16 : defelp = &elemTypeEl;
316 222 : else if (strcmp(defel->defname, "default") == 0)
317 22 : defelp = &defaultValueEl;
318 200 : else if (strcmp(defel->defname, "passedbyvalue") == 0)
319 20 : defelp = &byValueEl;
320 180 : else if (strcmp(defel->defname, "alignment") == 0)
321 70 : defelp = &alignmentEl;
322 110 : else if (strcmp(defel->defname, "storage") == 0)
323 70 : 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 : }
336 928 : if (*defelp != NULL)
337 0 : errorConflictingDefElem(defel, pstate);
338 928 : *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 : */
346 224 : 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 : }
359 218 : if (internalLengthEl)
360 146 : internalLength = defGetTypeLength(internalLengthEl);
361 218 : if (inputNameEl)
362 212 : inputName = defGetQualifiedName(inputNameEl);
363 218 : if (outputNameEl)
364 212 : outputName = defGetQualifiedName(outputNameEl);
365 218 : if (receiveNameEl)
366 18 : receiveName = defGetQualifiedName(receiveNameEl);
367 218 : if (sendNameEl)
368 18 : sendName = defGetQualifiedName(sendNameEl);
369 218 : if (typmodinNameEl)
370 10 : typmodinName = defGetQualifiedName(typmodinNameEl);
371 218 : if (typmodoutNameEl)
372 10 : typmodoutName = defGetQualifiedName(typmodoutNameEl);
373 218 : if (analyzeNameEl)
374 0 : analyzeName = defGetQualifiedName(analyzeNameEl);
375 218 : if (subscriptNameEl)
376 4 : subscriptName = defGetQualifiedName(subscriptNameEl);
377 218 : if (categoryEl)
378 : {
379 14 : char *p = defGetString(categoryEl);
380 :
381 14 : category = p[0];
382 : /* restrict to non-control ASCII */
383 14 : 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 : }
389 218 : if (preferredEl)
390 14 : preferred = defGetBoolean(preferredEl);
391 218 : if (delimiterEl)
392 : {
393 0 : char *p = defGetString(delimiterEl);
394 :
395 0 : delimiter = p[0];
396 : /* XXX shouldn't we restrict the delimiter? */
397 : }
398 218 : if (elemTypeEl)
399 : {
400 16 : elemType = typenameTypeId(NULL, defGetTypeName(elemTypeEl));
401 : /* disallow arrays of pseudotypes */
402 16 : 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 : }
408 218 : if (defaultValueEl)
409 22 : defaultValue = defGetString(defaultValueEl);
410 218 : if (byValueEl)
411 20 : byValue = defGetBoolean(byValueEl);
412 218 : if (alignmentEl)
413 : {
414 70 : 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 : */
421 116 : if (pg_strcasecmp(a, "double") == 0 ||
422 92 : pg_strcasecmp(a, "float8") == 0 ||
423 46 : pg_strcasecmp(a, "pg_catalog.float8") == 0)
424 24 : alignment = TYPALIGN_DOUBLE;
425 52 : else if (pg_strcasecmp(a, "int4") == 0 ||
426 6 : pg_strcasecmp(a, "pg_catalog.int4") == 0)
427 46 : 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 : }
439 218 : if (storageEl)
440 : {
441 70 : char *a = defGetString(storageEl);
442 :
443 70 : if (pg_strcasecmp(a, "plain") == 0)
444 32 : storage = TYPSTORAGE_PLAIN;
445 38 : else if (pg_strcasecmp(a, "external") == 0)
446 0 : storage = TYPSTORAGE_EXTERNAL;
447 38 : else if (pg_strcasecmp(a, "extended") == 0)
448 32 : 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 : }
456 218 : if (collatableEl)
457 4 : collation = defGetBoolean(collatableEl) ? DEFAULT_COLLATION_OID : InvalidOid;
458 :
459 : /*
460 : * make sure we have our required definitions
461 : */
462 218 : if (inputName == NIL)
463 6 : ereport(ERROR,
464 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
465 : errmsg("type input function must be specified")));
466 212 : if (outputName == NIL)
467 0 : ereport(ERROR,
468 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
469 : errmsg("type output function must be specified")));
470 :
471 212 : 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 : */
479 212 : inputOid = findTypeInputFunction(inputName, typoid);
480 206 : outputOid = findTypeOutputFunction(outputName, typoid);
481 206 : if (receiveName)
482 18 : receiveOid = findTypeReceiveFunction(receiveName, typoid);
483 206 : if (sendName)
484 18 : sendOid = findTypeSendFunction(sendName, typoid);
485 :
486 : /*
487 : * Convert typmodin/out function proc names to OIDs.
488 : */
489 206 : if (typmodinName)
490 10 : typmodinOid = findTypeTypmodinFunction(typmodinName);
491 206 : if (typmodoutName)
492 10 : 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 : */
498 206 : 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 : */
507 206 : if (subscriptName)
508 4 : subscriptOid = findTypeSubscriptingFunction(subscriptName, typoid);
509 202 : 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 : */
563 206 : 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 =
573 206 : 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 : */
610 206 : array_type = makeArrayTypeName(typeName, typeNamespace);
611 :
612 : /* alignment must be TYPALIGN_INT or TYPALIGN_DOUBLE for arrays */
613 206 : alignment = (alignment == TYPALIGN_DOUBLE) ? TYPALIGN_DOUBLE : TYPALIGN_INT;
614 :
615 206 : 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 :
648 206 : pfree(array_type);
649 :
650 206 : return address;
651 : }
652 :
653 : /*
654 : * Guts of type deletion.
655 : */
656 : void
657 75942 : RemoveTypeById(Oid typeOid)
658 : {
659 : Relation relation;
660 : HeapTuple tup;
661 :
662 75942 : relation = table_open(TypeRelationId, RowExclusiveLock);
663 :
664 75942 : tup = SearchSysCache1(TYPEOID, ObjectIdGetDatum(typeOid));
665 75942 : if (!HeapTupleIsValid(tup))
666 0 : elog(ERROR, "cache lookup failed for type %u", typeOid);
667 :
668 75942 : 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 75942 : 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 75942 : if (((Form_pg_type) GETSTRUCT(tup))->typtype == TYPTYPE_RANGE)
684 104 : RangeDelete(typeOid);
685 :
686 75942 : ReleaseSysCache(tup);
687 :
688 75942 : table_close(relation, RowExclusiveLock);
689 75942 : }
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 86 : typtype != TYPTYPE_COMPOSITE &&
779 34 : 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)
804 226 : domaincoll = get_collation_oid(stmt->collClause->collname, false);
805 : else
806 1230 : 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 2296 : foreach(listptr, schema)
868 : {
869 930 : Constraint *constr = lfirst(listptr);
870 :
871 930 : if (!IsA(constr, Constraint))
872 0 : elog(ERROR, "unrecognized node type: %d",
873 : (int) nodeTag(constr));
874 930 : switch (constr->contype)
875 : {
876 180 : 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 : */
882 180 : if (saw_default)
883 6 : ereport(ERROR,
884 : errcode(ERRCODE_SYNTAX_ERROR),
885 : errmsg("multiple default expressions"),
886 : parser_errposition(pstate, constr->location));
887 174 : saw_default = true;
888 :
889 174 : 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 : */
897 174 : 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 : */
913 168 : if (defaultExpr == NULL ||
914 168 : (IsA(defaultExpr, Const) &&
915 38 : ((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 =
928 168 : deparse_expression(defaultExpr,
929 : NIL, false, false);
930 168 : defaultValueBin = nodeToString(defaultExpr);
931 : }
932 : }
933 : else
934 : {
935 : /* No default (can this still happen?) */
936 0 : defaultValue = NULL;
937 0 : defaultValueBin = NULL;
938 : }
939 168 : break;
940 :
941 104 : case CONSTR_NOTNULL:
942 104 : if (nullDefined && !typNotNull)
943 0 : ereport(ERROR,
944 : errcode(ERRCODE_SYNTAX_ERROR),
945 : errmsg("conflicting NULL/NOT NULL constraints"),
946 : parser_errposition(pstate, constr->location));
947 104 : if (constr->is_no_inherit)
948 6 : ereport(ERROR,
949 : errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
950 : errmsg("not-null constraints for domains cannot be marked NO INHERIT"),
951 : parser_errposition(pstate, constr->location));
952 98 : typNotNull = true;
953 98 : nullDefined = true;
954 98 : break;
955 :
956 6 : case CONSTR_NULL:
957 6 : if (nullDefined && typNotNull)
958 6 : ereport(ERROR,
959 : errcode(ERRCODE_SYNTAX_ERROR),
960 : errmsg("conflicting NULL/NOT NULL constraints"),
961 : parser_errposition(pstate, constr->location));
962 0 : typNotNull = false;
963 0 : nullDefined = true;
964 0 : break;
965 :
966 598 : case CONSTR_CHECK:
967 :
968 : /*
969 : * Check constraints are handled after domain creation, as
970 : * they require the Oid of the domain; at this point we can
971 : * only check that they're not marked NO INHERIT, because that
972 : * would be bogus.
973 : */
974 598 : if (constr->is_no_inherit)
975 6 : ereport(ERROR,
976 : errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
977 : errmsg("check constraints for domains cannot be marked NO INHERIT"),
978 : parser_errposition(pstate, constr->location));
979 :
980 592 : break;
981 :
982 : /*
983 : * All else are error cases
984 : */
985 6 : case CONSTR_UNIQUE:
986 6 : ereport(ERROR,
987 : errcode(ERRCODE_SYNTAX_ERROR),
988 : errmsg("unique constraints not possible for domains"),
989 : parser_errposition(pstate, constr->location));
990 : break;
991 :
992 6 : case CONSTR_PRIMARY:
993 6 : ereport(ERROR,
994 : (errcode(ERRCODE_SYNTAX_ERROR),
995 : errmsg("primary key constraints not possible for domains"),
996 : parser_errposition(pstate, constr->location)));
997 : break;
998 :
999 0 : case CONSTR_EXCLUSION:
1000 0 : ereport(ERROR,
1001 : (errcode(ERRCODE_SYNTAX_ERROR),
1002 : errmsg("exclusion constraints not possible for domains"),
1003 : parser_errposition(pstate, constr->location)));
1004 : break;
1005 :
1006 6 : case CONSTR_FOREIGN:
1007 6 : ereport(ERROR,
1008 : (errcode(ERRCODE_SYNTAX_ERROR),
1009 : errmsg("foreign key constraints not possible for domains"),
1010 : parser_errposition(pstate, constr->location)));
1011 : break;
1012 :
1013 6 : case CONSTR_ATTR_DEFERRABLE:
1014 : case CONSTR_ATTR_NOT_DEFERRABLE:
1015 : case CONSTR_ATTR_DEFERRED:
1016 : case CONSTR_ATTR_IMMEDIATE:
1017 6 : ereport(ERROR,
1018 : (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
1019 : errmsg("specifying constraint deferrability not supported for domains"),
1020 : parser_errposition(pstate, constr->location)));
1021 : break;
1022 :
1023 6 : case CONSTR_GENERATED:
1024 : case CONSTR_IDENTITY:
1025 6 : ereport(ERROR,
1026 : (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
1027 : errmsg("specifying GENERATED not supported for domains"),
1028 : parser_errposition(pstate, constr->location)));
1029 : break;
1030 :
1031 12 : case CONSTR_ATTR_ENFORCED:
1032 : case CONSTR_ATTR_NOT_ENFORCED:
1033 12 : ereport(ERROR,
1034 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
1035 : errmsg("specifying constraint enforceability not supported for domains"),
1036 : parser_errposition(pstate, constr->location)));
1037 : break;
1038 :
1039 : /* no default, to let compiler warn about missing case */
1040 : }
1041 858 : }
1042 :
1043 : /* Allocate OID for array type */
1044 1366 : domainArrayOid = AssignTypeArrayOid();
1045 :
1046 : /*
1047 : * Have TypeCreate do all the real work.
1048 : */
1049 : address =
1050 1366 : TypeCreate(InvalidOid, /* no predetermined type OID */
1051 : domainName, /* type name */
1052 : domainNamespace, /* namespace */
1053 : InvalidOid, /* relation oid (n/a here) */
1054 : 0, /* relation kind (ditto) */
1055 : GetUserId(), /* owner's ID */
1056 : internalLength, /* internal size */
1057 : TYPTYPE_DOMAIN, /* type-type (domain type) */
1058 : category, /* type-category */
1059 : false, /* domain types are never preferred */
1060 : delimiter, /* array element delimiter */
1061 : inputProcedure, /* input procedure */
1062 : outputProcedure, /* output procedure */
1063 : receiveProcedure, /* receive procedure */
1064 : sendProcedure, /* send procedure */
1065 : InvalidOid, /* typmodin procedure - none */
1066 : InvalidOid, /* typmodout procedure - none */
1067 : analyzeProcedure, /* analyze procedure */
1068 : InvalidOid, /* subscript procedure - none */
1069 : InvalidOid, /* no array element type */
1070 : false, /* this isn't an array */
1071 : domainArrayOid, /* array type we are about to create */
1072 : basetypeoid, /* base type ID */
1073 : defaultValue, /* default type value (text) */
1074 : defaultValueBin, /* default type value (binary) */
1075 : byValue, /* passed by value */
1076 : alignment, /* required alignment */
1077 : storage, /* TOAST strategy */
1078 : basetypeMod, /* typeMod value */
1079 : typNDims, /* Array dimensions for base type */
1080 : typNotNull, /* Type NOT NULL */
1081 : domaincoll); /* type's collation */
1082 :
1083 : /*
1084 : * Create the array type that goes with it.
1085 : */
1086 1366 : domainArrayName = makeArrayTypeName(domainName, domainNamespace);
1087 :
1088 : /* alignment must be TYPALIGN_INT or TYPALIGN_DOUBLE for arrays */
1089 1366 : alignment = (alignment == TYPALIGN_DOUBLE) ? TYPALIGN_DOUBLE : TYPALIGN_INT;
1090 :
1091 1366 : TypeCreate(domainArrayOid, /* force assignment of this type OID */
1092 : domainArrayName, /* type name */
1093 : domainNamespace, /* namespace */
1094 : InvalidOid, /* relation oid (n/a here) */
1095 : 0, /* relation kind (ditto) */
1096 : GetUserId(), /* owner's ID */
1097 : -1, /* internal size (always varlena) */
1098 : TYPTYPE_BASE, /* type-type (base type) */
1099 : TYPCATEGORY_ARRAY, /* type-category (array) */
1100 : false, /* array types are never preferred */
1101 : delimiter, /* array element delimiter */
1102 : F_ARRAY_IN, /* input procedure */
1103 : F_ARRAY_OUT, /* output procedure */
1104 : F_ARRAY_RECV, /* receive procedure */
1105 : F_ARRAY_SEND, /* send procedure */
1106 : InvalidOid, /* typmodin procedure - none */
1107 : InvalidOid, /* typmodout procedure - none */
1108 : F_ARRAY_TYPANALYZE, /* analyze procedure */
1109 : F_ARRAY_SUBSCRIPT_HANDLER, /* array subscript procedure */
1110 : address.objectId, /* element type ID */
1111 : true, /* yes this is an array type */
1112 : InvalidOid, /* no further array type */
1113 : InvalidOid, /* base type ID */
1114 : NULL, /* never a default type value */
1115 : NULL, /* binary default isn't sent either */
1116 : false, /* never passed by value */
1117 : alignment, /* see above */
1118 : TYPSTORAGE_EXTENDED, /* ARRAY is always toastable */
1119 : -1, /* typMod (Domains only) */
1120 : 0, /* Array dimensions of typbasetype */
1121 : false, /* Type NOT NULL */
1122 : domaincoll); /* type's collation */
1123 :
1124 1366 : pfree(domainArrayName);
1125 :
1126 : /*
1127 : * Process constraints which refer to the domain ID returned by TypeCreate
1128 : */
1129 2188 : foreach(listptr, schema)
1130 : {
1131 822 : Constraint *constr = lfirst(listptr);
1132 :
1133 : /* it must be a Constraint, per check above */
1134 :
1135 822 : switch (constr->contype)
1136 : {
1137 574 : case CONSTR_CHECK:
1138 574 : domainAddCheckConstraint(address.objectId, domainNamespace,
1139 : basetypeoid, basetypeMod,
1140 : constr, domainName, NULL);
1141 574 : break;
1142 :
1143 86 : case CONSTR_NOTNULL:
1144 86 : domainAddNotNullConstraint(address.objectId, domainNamespace,
1145 : basetypeoid, basetypeMod,
1146 : constr, domainName, NULL);
1147 86 : break;
1148 :
1149 : /* Other constraint types were fully processed above */
1150 :
1151 162 : default:
1152 162 : break;
1153 : }
1154 :
1155 : /* CCI so we can detect duplicate constraint names */
1156 822 : CommandCounterIncrement();
1157 : }
1158 :
1159 : /*
1160 : * Now we can clean up.
1161 : */
1162 1366 : ReleaseSysCache(typeTup);
1163 :
1164 1366 : return address;
1165 : }
1166 :
1167 :
1168 : /*
1169 : * DefineEnum
1170 : * Registers a new enum.
1171 : */
1172 : ObjectAddress
1173 444 : DefineEnum(CreateEnumStmt *stmt)
1174 : {
1175 : char *enumName;
1176 : char *enumArrayName;
1177 : Oid enumNamespace;
1178 : AclResult aclresult;
1179 : Oid old_type_oid;
1180 : Oid enumArrayOid;
1181 : ObjectAddress enumTypeAddr;
1182 :
1183 : /* Convert list of names to a name and namespace */
1184 444 : enumNamespace = QualifiedNameGetCreationNamespace(stmt->typeName,
1185 : &enumName);
1186 :
1187 : /* Check we have creation rights in target namespace */
1188 444 : aclresult = object_aclcheck(NamespaceRelationId, enumNamespace, GetUserId(), ACL_CREATE);
1189 444 : if (aclresult != ACLCHECK_OK)
1190 0 : aclcheck_error(aclresult, OBJECT_SCHEMA,
1191 0 : get_namespace_name(enumNamespace));
1192 :
1193 : /*
1194 : * Check for collision with an existing type name. If there is one and
1195 : * it's an autogenerated array, we can rename it out of the way.
1196 : */
1197 444 : old_type_oid = GetSysCacheOid2(TYPENAMENSP, Anum_pg_type_oid,
1198 : CStringGetDatum(enumName),
1199 : ObjectIdGetDatum(enumNamespace));
1200 444 : if (OidIsValid(old_type_oid))
1201 : {
1202 8 : if (!moveArrayTypeName(old_type_oid, enumName, enumNamespace))
1203 0 : ereport(ERROR,
1204 : (errcode(ERRCODE_DUPLICATE_OBJECT),
1205 : errmsg("type \"%s\" already exists", enumName)));
1206 : }
1207 :
1208 : /* Allocate OID for array type */
1209 444 : enumArrayOid = AssignTypeArrayOid();
1210 :
1211 : /* Create the pg_type entry */
1212 : enumTypeAddr =
1213 444 : TypeCreate(InvalidOid, /* no predetermined type OID */
1214 : enumName, /* type name */
1215 : enumNamespace, /* namespace */
1216 : InvalidOid, /* relation oid (n/a here) */
1217 : 0, /* relation kind (ditto) */
1218 : GetUserId(), /* owner's ID */
1219 : sizeof(Oid), /* internal size */
1220 : TYPTYPE_ENUM, /* type-type (enum type) */
1221 : TYPCATEGORY_ENUM, /* type-category (enum type) */
1222 : false, /* enum types are never preferred */
1223 : DEFAULT_TYPDELIM, /* array element delimiter */
1224 : F_ENUM_IN, /* input procedure */
1225 : F_ENUM_OUT, /* output procedure */
1226 : F_ENUM_RECV, /* receive procedure */
1227 : F_ENUM_SEND, /* send procedure */
1228 : InvalidOid, /* typmodin procedure - none */
1229 : InvalidOid, /* typmodout procedure - none */
1230 : InvalidOid, /* analyze procedure - default */
1231 : InvalidOid, /* subscript procedure - none */
1232 : InvalidOid, /* element type ID */
1233 : false, /* this is not an array type */
1234 : enumArrayOid, /* array type we are about to create */
1235 : InvalidOid, /* base type ID (only for domains) */
1236 : NULL, /* never a default type value */
1237 : NULL, /* binary default isn't sent either */
1238 : true, /* always passed by value */
1239 : TYPALIGN_INT, /* int alignment */
1240 : TYPSTORAGE_PLAIN, /* TOAST strategy always plain */
1241 : -1, /* typMod (Domains only) */
1242 : 0, /* Array dimensions of typbasetype */
1243 : false, /* Type NOT NULL */
1244 : InvalidOid); /* type's collation */
1245 :
1246 : /* Enter the enum's values into pg_enum */
1247 442 : EnumValuesCreate(enumTypeAddr.objectId, stmt->vals);
1248 :
1249 : /*
1250 : * Create the array type that goes with it.
1251 : */
1252 442 : enumArrayName = makeArrayTypeName(enumName, enumNamespace);
1253 :
1254 442 : TypeCreate(enumArrayOid, /* force assignment of this type OID */
1255 : enumArrayName, /* type name */
1256 : enumNamespace, /* namespace */
1257 : InvalidOid, /* relation oid (n/a here) */
1258 : 0, /* relation kind (ditto) */
1259 : GetUserId(), /* owner's ID */
1260 : -1, /* internal size (always varlena) */
1261 : TYPTYPE_BASE, /* type-type (base type) */
1262 : TYPCATEGORY_ARRAY, /* type-category (array) */
1263 : false, /* array types are never preferred */
1264 : DEFAULT_TYPDELIM, /* array element delimiter */
1265 : F_ARRAY_IN, /* input procedure */
1266 : F_ARRAY_OUT, /* output procedure */
1267 : F_ARRAY_RECV, /* receive procedure */
1268 : F_ARRAY_SEND, /* send procedure */
1269 : InvalidOid, /* typmodin procedure - none */
1270 : InvalidOid, /* typmodout procedure - none */
1271 : F_ARRAY_TYPANALYZE, /* analyze procedure */
1272 : F_ARRAY_SUBSCRIPT_HANDLER, /* array subscript procedure */
1273 : enumTypeAddr.objectId, /* element type ID */
1274 : true, /* yes this is an array type */
1275 : InvalidOid, /* no further array type */
1276 : InvalidOid, /* base type ID */
1277 : NULL, /* never a default type value */
1278 : NULL, /* binary default isn't sent either */
1279 : false, /* never passed by value */
1280 : TYPALIGN_INT, /* enums have int align, so do their arrays */
1281 : TYPSTORAGE_EXTENDED, /* ARRAY is always toastable */
1282 : -1, /* typMod (Domains only) */
1283 : 0, /* Array dimensions of typbasetype */
1284 : false, /* Type NOT NULL */
1285 : InvalidOid); /* type's collation */
1286 :
1287 442 : pfree(enumArrayName);
1288 :
1289 442 : return enumTypeAddr;
1290 : }
1291 :
1292 : /*
1293 : * AlterEnum
1294 : * Adds a new label to an existing enum.
1295 : */
1296 : ObjectAddress
1297 396 : AlterEnum(AlterEnumStmt *stmt)
1298 : {
1299 : Oid enum_type_oid;
1300 : TypeName *typename;
1301 : HeapTuple tup;
1302 : ObjectAddress address;
1303 :
1304 : /* Make a TypeName so we can use standard type lookup machinery */
1305 396 : typename = makeTypeNameFromNameList(stmt->typeName);
1306 396 : enum_type_oid = typenameTypeId(NULL, typename);
1307 :
1308 396 : tup = SearchSysCache1(TYPEOID, ObjectIdGetDatum(enum_type_oid));
1309 396 : if (!HeapTupleIsValid(tup))
1310 0 : elog(ERROR, "cache lookup failed for type %u", enum_type_oid);
1311 :
1312 : /* Check it's an enum and check user has permission to ALTER the enum */
1313 396 : checkEnumOwner(tup);
1314 :
1315 396 : ReleaseSysCache(tup);
1316 :
1317 396 : if (stmt->oldVal)
1318 : {
1319 : /* Rename an existing label */
1320 24 : RenameEnumLabel(enum_type_oid, stmt->oldVal, stmt->newVal);
1321 : }
1322 : else
1323 : {
1324 : /* Add a new label */
1325 372 : AddEnumLabel(enum_type_oid, stmt->newVal,
1326 372 : stmt->newValNeighbor, stmt->newValIsAfter,
1327 372 : stmt->skipIfNewValExists);
1328 : }
1329 :
1330 366 : InvokeObjectPostAlterHook(TypeRelationId, enum_type_oid, 0);
1331 :
1332 366 : ObjectAddressSet(address, TypeRelationId, enum_type_oid);
1333 :
1334 366 : return address;
1335 : }
1336 :
1337 :
1338 : /*
1339 : * checkEnumOwner
1340 : *
1341 : * Check that the type is actually an enum and that the current user
1342 : * has permission to do ALTER TYPE on it. Throw an error if not.
1343 : */
1344 : static void
1345 396 : checkEnumOwner(HeapTuple tup)
1346 : {
1347 396 : Form_pg_type typTup = (Form_pg_type) GETSTRUCT(tup);
1348 :
1349 : /* Check that this is actually an enum */
1350 396 : if (typTup->typtype != TYPTYPE_ENUM)
1351 0 : ereport(ERROR,
1352 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
1353 : errmsg("%s is not an enum",
1354 : format_type_be(typTup->oid))));
1355 :
1356 : /* Permission check: must own type */
1357 396 : if (!object_ownercheck(TypeRelationId, typTup->oid, GetUserId()))
1358 0 : aclcheck_error_type(ACLCHECK_NOT_OWNER, typTup->oid);
1359 396 : }
1360 :
1361 :
1362 : /*
1363 : * DefineRange
1364 : * Registers a new range type.
1365 : *
1366 : * Perhaps it might be worthwhile to set pg_type.typelem to the base type,
1367 : * and likewise on multiranges to set it to the range type. But having a
1368 : * non-zero typelem is treated elsewhere as a synonym for being an array,
1369 : * and users might have queries with that same assumption.
1370 : */
1371 : ObjectAddress
1372 196 : DefineRange(ParseState *pstate, CreateRangeStmt *stmt)
1373 : {
1374 : char *typeName;
1375 : Oid typeNamespace;
1376 : Oid typoid;
1377 : char *rangeArrayName;
1378 196 : char *multirangeTypeName = NULL;
1379 : char *multirangeArrayName;
1380 196 : Oid multirangeNamespace = InvalidOid;
1381 : Oid rangeArrayOid;
1382 : Oid multirangeOid;
1383 : Oid multirangeArrayOid;
1384 196 : Oid rangeSubtype = InvalidOid;
1385 196 : List *rangeSubOpclassName = NIL;
1386 196 : List *rangeCollationName = NIL;
1387 196 : List *rangeCanonicalName = NIL;
1388 196 : List *rangeSubtypeDiffName = NIL;
1389 : Oid rangeSubOpclass;
1390 : Oid rangeCollation;
1391 : regproc rangeCanonical;
1392 : regproc rangeSubtypeDiff;
1393 : int16 subtyplen;
1394 : bool subtypbyval;
1395 : char subtypalign;
1396 : char alignment;
1397 : AclResult aclresult;
1398 : ListCell *lc;
1399 : ObjectAddress address;
1400 : ObjectAddress mltrngaddress PG_USED_FOR_ASSERTS_ONLY;
1401 : Oid castFuncOid;
1402 :
1403 : /* Convert list of names to a name and namespace */
1404 196 : typeNamespace = QualifiedNameGetCreationNamespace(stmt->typeName,
1405 : &typeName);
1406 :
1407 : /* Check we have creation rights in target namespace */
1408 196 : aclresult = object_aclcheck(NamespaceRelationId, typeNamespace, GetUserId(), ACL_CREATE);
1409 196 : if (aclresult != ACLCHECK_OK)
1410 0 : aclcheck_error(aclresult, OBJECT_SCHEMA,
1411 0 : get_namespace_name(typeNamespace));
1412 :
1413 : /*
1414 : * Look to see if type already exists.
1415 : */
1416 196 : typoid = GetSysCacheOid2(TYPENAMENSP, Anum_pg_type_oid,
1417 : CStringGetDatum(typeName),
1418 : ObjectIdGetDatum(typeNamespace));
1419 :
1420 : /*
1421 : * If it's not a shell, see if it's an autogenerated array type, and if so
1422 : * rename it out of the way.
1423 : */
1424 196 : if (OidIsValid(typoid) && get_typisdefined(typoid))
1425 : {
1426 0 : if (moveArrayTypeName(typoid, typeName, typeNamespace))
1427 0 : typoid = InvalidOid;
1428 : else
1429 0 : ereport(ERROR,
1430 : (errcode(ERRCODE_DUPLICATE_OBJECT),
1431 : errmsg("type \"%s\" already exists", typeName)));
1432 : }
1433 :
1434 : /*
1435 : * Unlike DefineType(), we don't insist on a shell type existing first, as
1436 : * it's only needed if the user wants to specify a canonical function.
1437 : */
1438 :
1439 : /* Extract the parameters from the parameter list */
1440 536 : foreach(lc, stmt->params)
1441 : {
1442 340 : DefElem *defel = (DefElem *) lfirst(lc);
1443 :
1444 340 : if (strcmp(defel->defname, "subtype") == 0)
1445 : {
1446 196 : if (OidIsValid(rangeSubtype))
1447 0 : errorConflictingDefElem(defel, pstate);
1448 : /* we can look up the subtype name immediately */
1449 196 : rangeSubtype = typenameTypeId(NULL, defGetTypeName(defel));
1450 : }
1451 144 : else if (strcmp(defel->defname, "subtype_opclass") == 0)
1452 : {
1453 8 : if (rangeSubOpclassName != NIL)
1454 0 : errorConflictingDefElem(defel, pstate);
1455 8 : rangeSubOpclassName = defGetQualifiedName(defel);
1456 : }
1457 136 : else if (strcmp(defel->defname, "collation") == 0)
1458 : {
1459 72 : if (rangeCollationName != NIL)
1460 0 : errorConflictingDefElem(defel, pstate);
1461 72 : rangeCollationName = defGetQualifiedName(defel);
1462 : }
1463 64 : else if (strcmp(defel->defname, "canonical") == 0)
1464 : {
1465 0 : if (rangeCanonicalName != NIL)
1466 0 : errorConflictingDefElem(defel, pstate);
1467 0 : rangeCanonicalName = defGetQualifiedName(defel);
1468 : }
1469 64 : else if (strcmp(defel->defname, "subtype_diff") == 0)
1470 : {
1471 16 : if (rangeSubtypeDiffName != NIL)
1472 0 : errorConflictingDefElem(defel, pstate);
1473 16 : rangeSubtypeDiffName = defGetQualifiedName(defel);
1474 : }
1475 48 : else if (strcmp(defel->defname, "multirange_type_name") == 0)
1476 : {
1477 48 : if (multirangeTypeName != NULL)
1478 0 : errorConflictingDefElem(defel, pstate);
1479 : /* we can look up the subtype name immediately */
1480 48 : multirangeNamespace = QualifiedNameGetCreationNamespace(defGetQualifiedName(defel),
1481 : &multirangeTypeName);
1482 : }
1483 : else
1484 0 : ereport(ERROR,
1485 : (errcode(ERRCODE_SYNTAX_ERROR),
1486 : errmsg("type attribute \"%s\" not recognized",
1487 : defel->defname)));
1488 : }
1489 :
1490 : /* Must have a subtype */
1491 196 : if (!OidIsValid(rangeSubtype))
1492 0 : ereport(ERROR,
1493 : (errcode(ERRCODE_SYNTAX_ERROR),
1494 : errmsg("type attribute \"subtype\" is required")));
1495 : /* disallow ranges of pseudotypes */
1496 196 : if (get_typtype(rangeSubtype) == TYPTYPE_PSEUDO)
1497 0 : ereport(ERROR,
1498 : (errcode(ERRCODE_DATATYPE_MISMATCH),
1499 : errmsg("range subtype cannot be %s",
1500 : format_type_be(rangeSubtype))));
1501 :
1502 : /* Identify subopclass */
1503 196 : rangeSubOpclass = findRangeSubOpclass(rangeSubOpclassName, rangeSubtype);
1504 :
1505 : /* Identify collation to use, if any */
1506 196 : if (type_is_collatable(rangeSubtype))
1507 : {
1508 80 : if (rangeCollationName != NIL)
1509 72 : rangeCollation = get_collation_oid(rangeCollationName, false);
1510 : else
1511 8 : rangeCollation = get_typcollation(rangeSubtype);
1512 : }
1513 : else
1514 : {
1515 116 : if (rangeCollationName != NIL)
1516 0 : ereport(ERROR,
1517 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
1518 : errmsg("range collation specified but subtype does not support collation")));
1519 116 : rangeCollation = InvalidOid;
1520 : }
1521 :
1522 : /* Identify support functions, if provided */
1523 196 : if (rangeCanonicalName != NIL)
1524 : {
1525 0 : if (!OidIsValid(typoid))
1526 0 : ereport(ERROR,
1527 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
1528 : errmsg("cannot specify a canonical function without a pre-created shell type"),
1529 : errhint("Create the type as a shell type, then create its canonicalization function, then do a full CREATE TYPE.")));
1530 0 : rangeCanonical = findRangeCanonicalFunction(rangeCanonicalName,
1531 : typoid);
1532 : }
1533 : else
1534 196 : rangeCanonical = InvalidOid;
1535 :
1536 196 : if (rangeSubtypeDiffName != NIL)
1537 16 : rangeSubtypeDiff = findRangeSubtypeDiffFunction(rangeSubtypeDiffName,
1538 : rangeSubtype);
1539 : else
1540 180 : rangeSubtypeDiff = InvalidOid;
1541 :
1542 190 : get_typlenbyvalalign(rangeSubtype,
1543 : &subtyplen, &subtypbyval, &subtypalign);
1544 :
1545 : /* alignment must be TYPALIGN_INT or TYPALIGN_DOUBLE for ranges */
1546 190 : alignment = (subtypalign == TYPALIGN_DOUBLE) ? TYPALIGN_DOUBLE : TYPALIGN_INT;
1547 :
1548 : /* Allocate OID for array type, its multirange, and its multirange array */
1549 190 : rangeArrayOid = AssignTypeArrayOid();
1550 190 : multirangeOid = AssignTypeMultirangeOid();
1551 190 : multirangeArrayOid = AssignTypeMultirangeArrayOid();
1552 :
1553 : /* Create the pg_type entry */
1554 : address =
1555 190 : TypeCreate(InvalidOid, /* no predetermined type OID */
1556 : typeName, /* type name */
1557 : typeNamespace, /* namespace */
1558 : InvalidOid, /* relation oid (n/a here) */
1559 : 0, /* relation kind (ditto) */
1560 : GetUserId(), /* owner's ID */
1561 : -1, /* internal size (always varlena) */
1562 : TYPTYPE_RANGE, /* type-type (range type) */
1563 : TYPCATEGORY_RANGE, /* type-category (range type) */
1564 : false, /* range types are never preferred */
1565 : DEFAULT_TYPDELIM, /* array element delimiter */
1566 : F_RANGE_IN, /* input procedure */
1567 : F_RANGE_OUT, /* output procedure */
1568 : F_RANGE_RECV, /* receive procedure */
1569 : F_RANGE_SEND, /* send procedure */
1570 : InvalidOid, /* typmodin procedure - none */
1571 : InvalidOid, /* typmodout procedure - none */
1572 : F_RANGE_TYPANALYZE, /* analyze procedure */
1573 : InvalidOid, /* subscript procedure - none */
1574 : InvalidOid, /* element type ID - none */
1575 : false, /* this is not an array type */
1576 : rangeArrayOid, /* array type we are about to create */
1577 : InvalidOid, /* base type ID (only for domains) */
1578 : NULL, /* never a default type value */
1579 : NULL, /* no binary form available either */
1580 : false, /* never passed by value */
1581 : alignment, /* alignment */
1582 : TYPSTORAGE_EXTENDED, /* TOAST strategy (always extended) */
1583 : -1, /* typMod (Domains only) */
1584 : 0, /* Array dimensions of typbasetype */
1585 : false, /* Type NOT NULL */
1586 : InvalidOid); /* type's collation (ranges never have one) */
1587 : Assert(typoid == InvalidOid || typoid == address.objectId);
1588 190 : typoid = address.objectId;
1589 :
1590 : /* Create the multirange that goes with it */
1591 190 : if (multirangeTypeName)
1592 : {
1593 : Oid old_typoid;
1594 :
1595 : /*
1596 : * Look to see if multirange type already exists.
1597 : */
1598 48 : old_typoid = GetSysCacheOid2(TYPENAMENSP, Anum_pg_type_oid,
1599 : CStringGetDatum(multirangeTypeName),
1600 : ObjectIdGetDatum(multirangeNamespace));
1601 :
1602 : /*
1603 : * If it's not a shell, see if it's an autogenerated array type, and
1604 : * if so rename it out of the way.
1605 : */
1606 48 : if (OidIsValid(old_typoid) && get_typisdefined(old_typoid))
1607 : {
1608 12 : if (!moveArrayTypeName(old_typoid, multirangeTypeName, multirangeNamespace))
1609 6 : ereport(ERROR,
1610 : (errcode(ERRCODE_DUPLICATE_OBJECT),
1611 : errmsg("type \"%s\" already exists", multirangeTypeName)));
1612 : }
1613 : }
1614 : else
1615 : {
1616 : /* Generate multirange name automatically */
1617 142 : multirangeNamespace = typeNamespace;
1618 142 : multirangeTypeName = makeMultirangeTypeName(typeName, multirangeNamespace);
1619 : }
1620 :
1621 : mltrngaddress =
1622 172 : TypeCreate(multirangeOid, /* force assignment of this type OID */
1623 : multirangeTypeName, /* type name */
1624 : multirangeNamespace, /* namespace */
1625 : InvalidOid, /* relation oid (n/a here) */
1626 : 0, /* relation kind (ditto) */
1627 : GetUserId(), /* owner's ID */
1628 : -1, /* internal size (always varlena) */
1629 : TYPTYPE_MULTIRANGE, /* type-type (multirange type) */
1630 : TYPCATEGORY_RANGE, /* type-category (range type) */
1631 : false, /* multirange types are never preferred */
1632 : DEFAULT_TYPDELIM, /* array element delimiter */
1633 : F_MULTIRANGE_IN, /* input procedure */
1634 : F_MULTIRANGE_OUT, /* output procedure */
1635 : F_MULTIRANGE_RECV, /* receive procedure */
1636 : F_MULTIRANGE_SEND, /* send procedure */
1637 : InvalidOid, /* typmodin procedure - none */
1638 : InvalidOid, /* typmodout procedure - none */
1639 : F_MULTIRANGE_TYPANALYZE, /* analyze procedure */
1640 : InvalidOid, /* subscript procedure - none */
1641 : InvalidOid, /* element type ID - none */
1642 : false, /* this is not an array type */
1643 : multirangeArrayOid, /* array type we are about to create */
1644 : InvalidOid, /* base type ID (only for domains) */
1645 : NULL, /* never a default type value */
1646 : NULL, /* no binary form available either */
1647 : false, /* never passed by value */
1648 : alignment, /* alignment */
1649 : 'x', /* TOAST strategy (always extended) */
1650 : -1, /* typMod (Domains only) */
1651 : 0, /* Array dimensions of typbasetype */
1652 : false, /* Type NOT NULL */
1653 : InvalidOid); /* type's collation (ranges never have one) */
1654 : Assert(multirangeOid == mltrngaddress.objectId);
1655 :
1656 : /* Create the entry in pg_range */
1657 172 : RangeCreate(typoid, rangeSubtype, rangeCollation, rangeSubOpclass,
1658 : rangeCanonical, rangeSubtypeDiff, multirangeOid);
1659 :
1660 : /*
1661 : * Create the array type that goes with it.
1662 : */
1663 172 : rangeArrayName = makeArrayTypeName(typeName, typeNamespace);
1664 :
1665 172 : TypeCreate(rangeArrayOid, /* force assignment of this type OID */
1666 : rangeArrayName, /* type name */
1667 : typeNamespace, /* namespace */
1668 : InvalidOid, /* relation oid (n/a here) */
1669 : 0, /* relation kind (ditto) */
1670 : GetUserId(), /* owner's ID */
1671 : -1, /* internal size (always varlena) */
1672 : TYPTYPE_BASE, /* type-type (base type) */
1673 : TYPCATEGORY_ARRAY, /* type-category (array) */
1674 : false, /* array types are never preferred */
1675 : DEFAULT_TYPDELIM, /* array element delimiter */
1676 : F_ARRAY_IN, /* input procedure */
1677 : F_ARRAY_OUT, /* output procedure */
1678 : F_ARRAY_RECV, /* receive procedure */
1679 : F_ARRAY_SEND, /* send procedure */
1680 : InvalidOid, /* typmodin procedure - none */
1681 : InvalidOid, /* typmodout procedure - none */
1682 : F_ARRAY_TYPANALYZE, /* analyze procedure */
1683 : F_ARRAY_SUBSCRIPT_HANDLER, /* array subscript procedure */
1684 : typoid, /* element type ID */
1685 : true, /* yes this is an array type */
1686 : InvalidOid, /* no further array type */
1687 : InvalidOid, /* base type ID */
1688 : NULL, /* never a default type value */
1689 : NULL, /* binary default isn't sent either */
1690 : false, /* never passed by value */
1691 : alignment, /* alignment - same as range's */
1692 : TYPSTORAGE_EXTENDED, /* ARRAY is always toastable */
1693 : -1, /* typMod (Domains only) */
1694 : 0, /* Array dimensions of typbasetype */
1695 : false, /* Type NOT NULL */
1696 : InvalidOid); /* typcollation */
1697 :
1698 172 : pfree(rangeArrayName);
1699 :
1700 : /* Create the multirange's array type */
1701 :
1702 172 : multirangeArrayName = makeArrayTypeName(multirangeTypeName, typeNamespace);
1703 :
1704 172 : TypeCreate(multirangeArrayOid, /* force assignment of this type OID */
1705 : multirangeArrayName, /* type name */
1706 : multirangeNamespace, /* namespace */
1707 : InvalidOid, /* relation oid (n/a here) */
1708 : 0, /* relation kind (ditto) */
1709 : GetUserId(), /* owner's ID */
1710 : -1, /* internal size (always varlena) */
1711 : TYPTYPE_BASE, /* type-type (base type) */
1712 : TYPCATEGORY_ARRAY, /* type-category (array) */
1713 : false, /* array types are never preferred */
1714 : DEFAULT_TYPDELIM, /* array element delimiter */
1715 : F_ARRAY_IN, /* input procedure */
1716 : F_ARRAY_OUT, /* output procedure */
1717 : F_ARRAY_RECV, /* receive procedure */
1718 : F_ARRAY_SEND, /* send procedure */
1719 : InvalidOid, /* typmodin procedure - none */
1720 : InvalidOid, /* typmodout procedure - none */
1721 : F_ARRAY_TYPANALYZE, /* analyze procedure */
1722 : F_ARRAY_SUBSCRIPT_HANDLER, /* array subscript procedure */
1723 : multirangeOid, /* element type ID */
1724 : true, /* yes this is an array type */
1725 : InvalidOid, /* no further array type */
1726 : InvalidOid, /* base type ID */
1727 : NULL, /* never a default type value */
1728 : NULL, /* binary default isn't sent either */
1729 : false, /* never passed by value */
1730 : alignment, /* alignment - same as range's */
1731 : 'x', /* ARRAY is always toastable */
1732 : -1, /* typMod (Domains only) */
1733 : 0, /* Array dimensions of typbasetype */
1734 : false, /* Type NOT NULL */
1735 : InvalidOid); /* typcollation */
1736 :
1737 : /* And create the constructor functions for this range type */
1738 172 : makeRangeConstructors(typeName, typeNamespace, typoid, rangeSubtype);
1739 172 : makeMultirangeConstructors(multirangeTypeName, typeNamespace,
1740 : multirangeOid, typoid, rangeArrayOid,
1741 : &castFuncOid);
1742 :
1743 : /* Create cast from the range type to its multirange type */
1744 172 : CastCreate(typoid, multirangeOid, castFuncOid, InvalidOid, InvalidOid,
1745 : COERCION_CODE_EXPLICIT, COERCION_METHOD_FUNCTION,
1746 : DEPENDENCY_INTERNAL);
1747 :
1748 172 : pfree(multirangeArrayName);
1749 :
1750 172 : return address;
1751 : }
1752 :
1753 : /*
1754 : * Because there may exist several range types over the same subtype, the
1755 : * range type can't be uniquely determined from the subtype. So it's
1756 : * impossible to define a polymorphic constructor; we have to generate new
1757 : * constructor functions explicitly for each range type.
1758 : *
1759 : * We actually define 4 functions, with 0 through 3 arguments. This is just
1760 : * to offer more convenience for the user.
1761 : */
1762 : static void
1763 172 : makeRangeConstructors(const char *name, Oid namespace,
1764 : Oid rangeOid, Oid subtype)
1765 : {
1766 : static const char *const prosrc[2] = {"range_constructor2",
1767 : "range_constructor3"};
1768 : static const int pronargs[2] = {2, 3};
1769 :
1770 : Oid constructorArgTypes[3];
1771 : ObjectAddress myself,
1772 : referenced;
1773 : int i;
1774 :
1775 172 : constructorArgTypes[0] = subtype;
1776 172 : constructorArgTypes[1] = subtype;
1777 172 : constructorArgTypes[2] = TEXTOID;
1778 :
1779 172 : referenced.classId = TypeRelationId;
1780 172 : referenced.objectId = rangeOid;
1781 172 : referenced.objectSubId = 0;
1782 :
1783 516 : for (i = 0; i < lengthof(prosrc); i++)
1784 : {
1785 : oidvector *constructorArgTypesVector;
1786 :
1787 344 : constructorArgTypesVector = buildoidvector(constructorArgTypes,
1788 : pronargs[i]);
1789 :
1790 344 : myself = ProcedureCreate(name, /* name: same as range type */
1791 : namespace, /* namespace */
1792 : false, /* replace */
1793 : false, /* returns set */
1794 : rangeOid, /* return type */
1795 : BOOTSTRAP_SUPERUSERID, /* proowner */
1796 : INTERNALlanguageId, /* language */
1797 : F_FMGR_INTERNAL_VALIDATOR, /* language validator */
1798 : prosrc[i], /* prosrc */
1799 : NULL, /* probin */
1800 : NULL, /* prosqlbody */
1801 : PROKIND_FUNCTION,
1802 : false, /* security_definer */
1803 : false, /* leakproof */
1804 : false, /* isStrict */
1805 : PROVOLATILE_IMMUTABLE, /* volatility */
1806 : PROPARALLEL_SAFE, /* parallel safety */
1807 : constructorArgTypesVector, /* parameterTypes */
1808 : PointerGetDatum(NULL), /* allParameterTypes */
1809 : PointerGetDatum(NULL), /* parameterModes */
1810 : PointerGetDatum(NULL), /* parameterNames */
1811 : NIL, /* parameterDefaults */
1812 : PointerGetDatum(NULL), /* trftypes */
1813 : NIL, /* trfoids */
1814 : PointerGetDatum(NULL), /* proconfig */
1815 : InvalidOid, /* prosupport */
1816 : 1.0, /* procost */
1817 : 0.0); /* prorows */
1818 :
1819 : /*
1820 : * Make the constructors internally-dependent on the range type so
1821 : * that they go away silently when the type is dropped. Note that
1822 : * pg_dump depends on this choice to avoid dumping the constructors.
1823 : */
1824 344 : recordDependencyOn(&myself, &referenced, DEPENDENCY_INTERNAL);
1825 : }
1826 172 : }
1827 :
1828 : /*
1829 : * We make a separate multirange constructor for each range type
1830 : * so its name can include the base type, like range constructors do.
1831 : * If we had an anyrangearray polymorphic type we could use it here,
1832 : * but since each type has its own constructor name there's no need.
1833 : *
1834 : * Sets castFuncOid to the oid of the new constructor that can be used
1835 : * to cast from a range to a multirange.
1836 : */
1837 : static void
1838 172 : makeMultirangeConstructors(const char *name, Oid namespace,
1839 : Oid multirangeOid, Oid rangeOid, Oid rangeArrayOid,
1840 : Oid *castFuncOid)
1841 : {
1842 : ObjectAddress myself,
1843 : referenced;
1844 : oidvector *argtypes;
1845 : Datum allParamTypes;
1846 : ArrayType *allParameterTypes;
1847 : Datum paramModes;
1848 : ArrayType *parameterModes;
1849 :
1850 172 : referenced.classId = TypeRelationId;
1851 172 : referenced.objectId = multirangeOid;
1852 172 : referenced.objectSubId = 0;
1853 :
1854 : /* 0-arg constructor - for empty multiranges */
1855 172 : argtypes = buildoidvector(NULL, 0);
1856 172 : myself = ProcedureCreate(name, /* name: same as multirange type */
1857 : namespace,
1858 : false, /* replace */
1859 : false, /* returns set */
1860 : multirangeOid, /* return type */
1861 : BOOTSTRAP_SUPERUSERID, /* proowner */
1862 : INTERNALlanguageId, /* language */
1863 : F_FMGR_INTERNAL_VALIDATOR,
1864 : "multirange_constructor0", /* prosrc */
1865 : NULL, /* probin */
1866 : NULL, /* prosqlbody */
1867 : PROKIND_FUNCTION,
1868 : false, /* security_definer */
1869 : false, /* leakproof */
1870 : true, /* isStrict */
1871 : PROVOLATILE_IMMUTABLE, /* volatility */
1872 : PROPARALLEL_SAFE, /* parallel safety */
1873 : argtypes, /* parameterTypes */
1874 : PointerGetDatum(NULL), /* allParameterTypes */
1875 : PointerGetDatum(NULL), /* parameterModes */
1876 : PointerGetDatum(NULL), /* parameterNames */
1877 : NIL, /* parameterDefaults */
1878 : PointerGetDatum(NULL), /* trftypes */
1879 : NIL, /* trfoids */
1880 : PointerGetDatum(NULL), /* proconfig */
1881 : InvalidOid, /* prosupport */
1882 : 1.0, /* procost */
1883 : 0.0); /* prorows */
1884 :
1885 : /*
1886 : * Make the constructor internally-dependent on the multirange type so
1887 : * that they go away silently when the type is dropped. Note that pg_dump
1888 : * depends on this choice to avoid dumping the constructors.
1889 : */
1890 172 : recordDependencyOn(&myself, &referenced, DEPENDENCY_INTERNAL);
1891 172 : pfree(argtypes);
1892 :
1893 : /*
1894 : * 1-arg constructor - for casts
1895 : *
1896 : * In theory we shouldn't need both this and the vararg (n-arg)
1897 : * constructor, but having a separate 1-arg function lets us define casts
1898 : * against it.
1899 : */
1900 172 : argtypes = buildoidvector(&rangeOid, 1);
1901 172 : myself = ProcedureCreate(name, /* name: same as multirange type */
1902 : namespace,
1903 : false, /* replace */
1904 : false, /* returns set */
1905 : multirangeOid, /* return type */
1906 : BOOTSTRAP_SUPERUSERID, /* proowner */
1907 : INTERNALlanguageId, /* language */
1908 : F_FMGR_INTERNAL_VALIDATOR,
1909 : "multirange_constructor1", /* prosrc */
1910 : NULL, /* probin */
1911 : NULL, /* prosqlbody */
1912 : PROKIND_FUNCTION,
1913 : false, /* security_definer */
1914 : false, /* leakproof */
1915 : true, /* isStrict */
1916 : PROVOLATILE_IMMUTABLE, /* volatility */
1917 : PROPARALLEL_SAFE, /* parallel safety */
1918 : argtypes, /* parameterTypes */
1919 : PointerGetDatum(NULL), /* allParameterTypes */
1920 : PointerGetDatum(NULL), /* parameterModes */
1921 : PointerGetDatum(NULL), /* parameterNames */
1922 : NIL, /* parameterDefaults */
1923 : PointerGetDatum(NULL), /* trftypes */
1924 : NIL, /* trfoids */
1925 : PointerGetDatum(NULL), /* proconfig */
1926 : InvalidOid, /* prosupport */
1927 : 1.0, /* procost */
1928 : 0.0); /* prorows */
1929 : /* ditto */
1930 172 : recordDependencyOn(&myself, &referenced, DEPENDENCY_INTERNAL);
1931 172 : pfree(argtypes);
1932 172 : *castFuncOid = myself.objectId;
1933 :
1934 : /* n-arg constructor - vararg */
1935 172 : argtypes = buildoidvector(&rangeArrayOid, 1);
1936 172 : allParamTypes = ObjectIdGetDatum(rangeArrayOid);
1937 172 : allParameterTypes = construct_array_builtin(&allParamTypes, 1, OIDOID);
1938 172 : paramModes = CharGetDatum(FUNC_PARAM_VARIADIC);
1939 172 : parameterModes = construct_array_builtin(¶mModes, 1, CHAROID);
1940 172 : myself = ProcedureCreate(name, /* name: same as multirange type */
1941 : namespace,
1942 : false, /* replace */
1943 : false, /* returns set */
1944 : multirangeOid, /* return type */
1945 : BOOTSTRAP_SUPERUSERID, /* proowner */
1946 : INTERNALlanguageId, /* language */
1947 : F_FMGR_INTERNAL_VALIDATOR,
1948 : "multirange_constructor2", /* prosrc */
1949 : NULL, /* probin */
1950 : NULL, /* prosqlbody */
1951 : PROKIND_FUNCTION,
1952 : false, /* security_definer */
1953 : false, /* leakproof */
1954 : true, /* isStrict */
1955 : PROVOLATILE_IMMUTABLE, /* volatility */
1956 : PROPARALLEL_SAFE, /* parallel safety */
1957 : argtypes, /* parameterTypes */
1958 : PointerGetDatum(allParameterTypes), /* allParameterTypes */
1959 : PointerGetDatum(parameterModes), /* parameterModes */
1960 : PointerGetDatum(NULL), /* parameterNames */
1961 : NIL, /* parameterDefaults */
1962 : PointerGetDatum(NULL), /* trftypes */
1963 : NIL, /* trfoids */
1964 : PointerGetDatum(NULL), /* proconfig */
1965 : InvalidOid, /* prosupport */
1966 : 1.0, /* procost */
1967 : 0.0); /* prorows */
1968 : /* ditto */
1969 172 : recordDependencyOn(&myself, &referenced, DEPENDENCY_INTERNAL);
1970 172 : pfree(argtypes);
1971 172 : pfree(allParameterTypes);
1972 172 : pfree(parameterModes);
1973 172 : }
1974 :
1975 : /*
1976 : * Find suitable I/O and other support functions for a type.
1977 : *
1978 : * typeOid is the type's OID (which will already exist, if only as a shell
1979 : * type).
1980 : */
1981 :
1982 : static Oid
1983 212 : findTypeInputFunction(List *procname, Oid typeOid)
1984 : {
1985 : Oid argList[3];
1986 : Oid procOid;
1987 : Oid procOid2;
1988 :
1989 : /*
1990 : * Input functions can take a single argument of type CSTRING, or three
1991 : * arguments (string, typioparam OID, typmod). Whine about ambiguity if
1992 : * both forms exist.
1993 : */
1994 212 : argList[0] = CSTRINGOID;
1995 212 : argList[1] = OIDOID;
1996 212 : argList[2] = INT4OID;
1997 :
1998 212 : procOid = LookupFuncName(procname, 1, argList, true);
1999 212 : procOid2 = LookupFuncName(procname, 3, argList, true);
2000 212 : if (OidIsValid(procOid))
2001 : {
2002 196 : if (OidIsValid(procOid2))
2003 0 : ereport(ERROR,
2004 : (errcode(ERRCODE_AMBIGUOUS_FUNCTION),
2005 : errmsg("type input function %s has multiple matches",
2006 : NameListToString(procname))));
2007 : }
2008 : else
2009 : {
2010 16 : procOid = procOid2;
2011 : /* If not found, reference the 1-argument signature in error msg */
2012 16 : if (!OidIsValid(procOid))
2013 0 : ereport(ERROR,
2014 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
2015 : errmsg("function %s does not exist",
2016 : func_signature_string(procname, 1, NIL, argList))));
2017 : }
2018 :
2019 : /* Input functions must return the target type. */
2020 212 : if (get_func_rettype(procOid) != typeOid)
2021 6 : ereport(ERROR,
2022 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2023 : errmsg("type input function %s must return type %s",
2024 : NameListToString(procname), format_type_be(typeOid))));
2025 :
2026 : /*
2027 : * Print warnings if any of the type's I/O functions are marked volatile.
2028 : * There is a general assumption that I/O functions are stable or
2029 : * immutable; this allows us for example to mark record_in/record_out
2030 : * stable rather than volatile. Ideally we would throw errors not just
2031 : * warnings here; but since this check is new as of 9.5, and since the
2032 : * volatility marking might be just an error-of-omission and not a true
2033 : * indication of how the function behaves, we'll let it pass as a warning
2034 : * for now.
2035 : */
2036 206 : if (func_volatile(procOid) == PROVOLATILE_VOLATILE)
2037 0 : ereport(WARNING,
2038 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2039 : errmsg("type input function %s should not be volatile",
2040 : NameListToString(procname))));
2041 :
2042 206 : return procOid;
2043 : }
2044 :
2045 : static Oid
2046 206 : findTypeOutputFunction(List *procname, Oid typeOid)
2047 : {
2048 : Oid argList[1];
2049 : Oid procOid;
2050 :
2051 : /*
2052 : * Output functions always take a single argument of the type and return
2053 : * cstring.
2054 : */
2055 206 : argList[0] = typeOid;
2056 :
2057 206 : procOid = LookupFuncName(procname, 1, argList, true);
2058 206 : if (!OidIsValid(procOid))
2059 0 : ereport(ERROR,
2060 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
2061 : errmsg("function %s does not exist",
2062 : func_signature_string(procname, 1, NIL, argList))));
2063 :
2064 206 : if (get_func_rettype(procOid) != CSTRINGOID)
2065 0 : ereport(ERROR,
2066 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2067 : errmsg("type output function %s must return type %s",
2068 : NameListToString(procname), "cstring")));
2069 :
2070 : /* Just a warning for now, per comments in findTypeInputFunction */
2071 206 : if (func_volatile(procOid) == PROVOLATILE_VOLATILE)
2072 0 : ereport(WARNING,
2073 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2074 : errmsg("type output function %s should not be volatile",
2075 : NameListToString(procname))));
2076 :
2077 206 : return procOid;
2078 : }
2079 :
2080 : static Oid
2081 46 : findTypeReceiveFunction(List *procname, Oid typeOid)
2082 : {
2083 : Oid argList[3];
2084 : Oid procOid;
2085 : Oid procOid2;
2086 :
2087 : /*
2088 : * Receive functions can take a single argument of type INTERNAL, or three
2089 : * arguments (internal, typioparam OID, typmod). Whine about ambiguity if
2090 : * both forms exist.
2091 : */
2092 46 : argList[0] = INTERNALOID;
2093 46 : argList[1] = OIDOID;
2094 46 : argList[2] = INT4OID;
2095 :
2096 46 : procOid = LookupFuncName(procname, 1, argList, true);
2097 46 : procOid2 = LookupFuncName(procname, 3, argList, true);
2098 46 : if (OidIsValid(procOid))
2099 : {
2100 36 : if (OidIsValid(procOid2))
2101 0 : ereport(ERROR,
2102 : (errcode(ERRCODE_AMBIGUOUS_FUNCTION),
2103 : errmsg("type receive function %s has multiple matches",
2104 : NameListToString(procname))));
2105 : }
2106 : else
2107 : {
2108 10 : procOid = procOid2;
2109 : /* If not found, reference the 1-argument signature in error msg */
2110 10 : if (!OidIsValid(procOid))
2111 0 : ereport(ERROR,
2112 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
2113 : errmsg("function %s does not exist",
2114 : func_signature_string(procname, 1, NIL, argList))));
2115 : }
2116 :
2117 : /* Receive functions must return the target type. */
2118 46 : if (get_func_rettype(procOid) != typeOid)
2119 0 : ereport(ERROR,
2120 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2121 : errmsg("type receive function %s must return type %s",
2122 : NameListToString(procname), format_type_be(typeOid))));
2123 :
2124 : /* Just a warning for now, per comments in findTypeInputFunction */
2125 46 : if (func_volatile(procOid) == PROVOLATILE_VOLATILE)
2126 0 : ereport(WARNING,
2127 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2128 : errmsg("type receive function %s should not be volatile",
2129 : NameListToString(procname))));
2130 :
2131 46 : return procOid;
2132 : }
2133 :
2134 : static Oid
2135 46 : findTypeSendFunction(List *procname, Oid typeOid)
2136 : {
2137 : Oid argList[1];
2138 : Oid procOid;
2139 :
2140 : /*
2141 : * Send functions always take a single argument of the type and return
2142 : * bytea.
2143 : */
2144 46 : argList[0] = typeOid;
2145 :
2146 46 : procOid = LookupFuncName(procname, 1, argList, true);
2147 46 : if (!OidIsValid(procOid))
2148 0 : ereport(ERROR,
2149 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
2150 : errmsg("function %s does not exist",
2151 : func_signature_string(procname, 1, NIL, argList))));
2152 :
2153 46 : if (get_func_rettype(procOid) != BYTEAOID)
2154 0 : ereport(ERROR,
2155 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2156 : errmsg("type send function %s must return type %s",
2157 : NameListToString(procname), "bytea")));
2158 :
2159 : /* Just a warning for now, per comments in findTypeInputFunction */
2160 46 : if (func_volatile(procOid) == PROVOLATILE_VOLATILE)
2161 0 : ereport(WARNING,
2162 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2163 : errmsg("type send function %s should not be volatile",
2164 : NameListToString(procname))));
2165 :
2166 46 : return procOid;
2167 : }
2168 :
2169 : static Oid
2170 16 : findTypeTypmodinFunction(List *procname)
2171 : {
2172 : Oid argList[1];
2173 : Oid procOid;
2174 :
2175 : /*
2176 : * typmodin functions always take one cstring[] argument and return int4.
2177 : */
2178 16 : argList[0] = CSTRINGARRAYOID;
2179 :
2180 16 : procOid = LookupFuncName(procname, 1, argList, true);
2181 16 : if (!OidIsValid(procOid))
2182 0 : ereport(ERROR,
2183 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
2184 : errmsg("function %s does not exist",
2185 : func_signature_string(procname, 1, NIL, argList))));
2186 :
2187 16 : if (get_func_rettype(procOid) != INT4OID)
2188 0 : ereport(ERROR,
2189 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2190 : errmsg("typmod_in function %s must return type %s",
2191 : NameListToString(procname), "integer")));
2192 :
2193 : /* Just a warning for now, per comments in findTypeInputFunction */
2194 16 : if (func_volatile(procOid) == PROVOLATILE_VOLATILE)
2195 0 : ereport(WARNING,
2196 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2197 : errmsg("type modifier input function %s should not be volatile",
2198 : NameListToString(procname))));
2199 :
2200 16 : return procOid;
2201 : }
2202 :
2203 : static Oid
2204 16 : findTypeTypmodoutFunction(List *procname)
2205 : {
2206 : Oid argList[1];
2207 : Oid procOid;
2208 :
2209 : /*
2210 : * typmodout functions always take one int4 argument and return cstring.
2211 : */
2212 16 : argList[0] = INT4OID;
2213 :
2214 16 : procOid = LookupFuncName(procname, 1, argList, true);
2215 16 : if (!OidIsValid(procOid))
2216 0 : ereport(ERROR,
2217 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
2218 : errmsg("function %s does not exist",
2219 : func_signature_string(procname, 1, NIL, argList))));
2220 :
2221 16 : if (get_func_rettype(procOid) != CSTRINGOID)
2222 0 : ereport(ERROR,
2223 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2224 : errmsg("typmod_out function %s must return type %s",
2225 : NameListToString(procname), "cstring")));
2226 :
2227 : /* Just a warning for now, per comments in findTypeInputFunction */
2228 16 : if (func_volatile(procOid) == PROVOLATILE_VOLATILE)
2229 0 : ereport(WARNING,
2230 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2231 : errmsg("type modifier output function %s should not be volatile",
2232 : NameListToString(procname))));
2233 :
2234 16 : return procOid;
2235 : }
2236 :
2237 : static Oid
2238 6 : findTypeAnalyzeFunction(List *procname, Oid typeOid)
2239 : {
2240 : Oid argList[1];
2241 : Oid procOid;
2242 :
2243 : /*
2244 : * Analyze functions always take one INTERNAL argument and return bool.
2245 : */
2246 6 : argList[0] = INTERNALOID;
2247 :
2248 6 : procOid = LookupFuncName(procname, 1, argList, true);
2249 6 : if (!OidIsValid(procOid))
2250 0 : ereport(ERROR,
2251 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
2252 : errmsg("function %s does not exist",
2253 : func_signature_string(procname, 1, NIL, argList))));
2254 :
2255 6 : if (get_func_rettype(procOid) != BOOLOID)
2256 0 : ereport(ERROR,
2257 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2258 : errmsg("type analyze function %s must return type %s",
2259 : NameListToString(procname), "boolean")));
2260 :
2261 6 : return procOid;
2262 : }
2263 :
2264 : static Oid
2265 24 : findTypeSubscriptingFunction(List *procname, Oid typeOid)
2266 : {
2267 : Oid argList[1];
2268 : Oid procOid;
2269 :
2270 : /*
2271 : * Subscripting support functions always take one INTERNAL argument and
2272 : * return INTERNAL. (The argument is not used, but we must have it to
2273 : * maintain type safety.)
2274 : */
2275 24 : argList[0] = INTERNALOID;
2276 :
2277 24 : procOid = LookupFuncName(procname, 1, argList, true);
2278 24 : if (!OidIsValid(procOid))
2279 0 : ereport(ERROR,
2280 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
2281 : errmsg("function %s does not exist",
2282 : func_signature_string(procname, 1, NIL, argList))));
2283 :
2284 24 : if (get_func_rettype(procOid) != INTERNALOID)
2285 0 : ereport(ERROR,
2286 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2287 : errmsg("type subscripting function %s must return type %s",
2288 : NameListToString(procname), "internal")));
2289 :
2290 : /*
2291 : * We disallow array_subscript_handler() from being selected explicitly,
2292 : * since that must only be applied to autogenerated array types.
2293 : */
2294 24 : if (procOid == F_ARRAY_SUBSCRIPT_HANDLER)
2295 0 : ereport(ERROR,
2296 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2297 : errmsg("user-defined types cannot use subscripting function %s",
2298 : NameListToString(procname))));
2299 :
2300 24 : return procOid;
2301 : }
2302 :
2303 : /*
2304 : * Find suitable support functions and opclasses for a range type.
2305 : */
2306 :
2307 : /*
2308 : * Find named btree opclass for subtype, or default btree opclass if
2309 : * opcname is NIL.
2310 : */
2311 : static Oid
2312 196 : findRangeSubOpclass(List *opcname, Oid subtype)
2313 : {
2314 : Oid opcid;
2315 : Oid opInputType;
2316 :
2317 196 : if (opcname != NIL)
2318 : {
2319 8 : opcid = get_opclass_oid(BTREE_AM_OID, opcname, false);
2320 :
2321 : /*
2322 : * Verify that the operator class accepts this datatype. Note we will
2323 : * accept binary compatibility.
2324 : */
2325 8 : opInputType = get_opclass_input_type(opcid);
2326 8 : if (!IsBinaryCoercible(subtype, opInputType))
2327 0 : ereport(ERROR,
2328 : (errcode(ERRCODE_DATATYPE_MISMATCH),
2329 : errmsg("operator class \"%s\" does not accept data type %s",
2330 : NameListToString(opcname),
2331 : format_type_be(subtype))));
2332 : }
2333 : else
2334 : {
2335 188 : opcid = GetDefaultOpClass(subtype, BTREE_AM_OID);
2336 188 : if (!OidIsValid(opcid))
2337 : {
2338 : /* We spell the error message identically to ResolveOpClass */
2339 0 : ereport(ERROR,
2340 : (errcode(ERRCODE_UNDEFINED_OBJECT),
2341 : errmsg("data type %s has no default operator class for access method \"%s\"",
2342 : format_type_be(subtype), "btree"),
2343 : errhint("You must specify an operator class for the range type or define a default operator class for the subtype.")));
2344 : }
2345 : }
2346 :
2347 196 : return opcid;
2348 : }
2349 :
2350 : static Oid
2351 0 : findRangeCanonicalFunction(List *procname, Oid typeOid)
2352 : {
2353 : Oid argList[1];
2354 : Oid procOid;
2355 : AclResult aclresult;
2356 :
2357 : /*
2358 : * Range canonical functions must take and return the range type, and must
2359 : * be immutable.
2360 : */
2361 0 : argList[0] = typeOid;
2362 :
2363 0 : procOid = LookupFuncName(procname, 1, argList, true);
2364 :
2365 0 : if (!OidIsValid(procOid))
2366 0 : ereport(ERROR,
2367 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
2368 : errmsg("function %s does not exist",
2369 : func_signature_string(procname, 1, NIL, argList))));
2370 :
2371 0 : if (get_func_rettype(procOid) != typeOid)
2372 0 : ereport(ERROR,
2373 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2374 : errmsg("range canonical function %s must return range type",
2375 : func_signature_string(procname, 1, NIL, argList))));
2376 :
2377 0 : if (func_volatile(procOid) != PROVOLATILE_IMMUTABLE)
2378 0 : ereport(ERROR,
2379 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2380 : errmsg("range canonical function %s must be immutable",
2381 : func_signature_string(procname, 1, NIL, argList))));
2382 :
2383 : /* Also, range type's creator must have permission to call function */
2384 0 : aclresult = object_aclcheck(ProcedureRelationId, procOid, GetUserId(), ACL_EXECUTE);
2385 0 : if (aclresult != ACLCHECK_OK)
2386 0 : aclcheck_error(aclresult, OBJECT_FUNCTION, get_func_name(procOid));
2387 :
2388 0 : return procOid;
2389 : }
2390 :
2391 : static Oid
2392 16 : findRangeSubtypeDiffFunction(List *procname, Oid subtype)
2393 : {
2394 : Oid argList[2];
2395 : Oid procOid;
2396 : AclResult aclresult;
2397 :
2398 : /*
2399 : * Range subtype diff functions must take two arguments of the subtype,
2400 : * must return float8, and must be immutable.
2401 : */
2402 16 : argList[0] = subtype;
2403 16 : argList[1] = subtype;
2404 :
2405 16 : procOid = LookupFuncName(procname, 2, argList, true);
2406 :
2407 16 : if (!OidIsValid(procOid))
2408 6 : ereport(ERROR,
2409 : (errcode(ERRCODE_UNDEFINED_FUNCTION),
2410 : errmsg("function %s does not exist",
2411 : func_signature_string(procname, 2, NIL, argList))));
2412 :
2413 10 : if (get_func_rettype(procOid) != FLOAT8OID)
2414 0 : ereport(ERROR,
2415 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2416 : errmsg("range subtype diff function %s must return type %s",
2417 : func_signature_string(procname, 2, NIL, argList),
2418 : "double precision")));
2419 :
2420 10 : if (func_volatile(procOid) != PROVOLATILE_IMMUTABLE)
2421 0 : ereport(ERROR,
2422 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
2423 : errmsg("range subtype diff function %s must be immutable",
2424 : func_signature_string(procname, 2, NIL, argList))));
2425 :
2426 : /* Also, range type's creator must have permission to call function */
2427 10 : aclresult = object_aclcheck(ProcedureRelationId, procOid, GetUserId(), ACL_EXECUTE);
2428 10 : if (aclresult != ACLCHECK_OK)
2429 0 : aclcheck_error(aclresult, OBJECT_FUNCTION, get_func_name(procOid));
2430 :
2431 10 : return procOid;
2432 : }
2433 :
2434 : /*
2435 : * AssignTypeArrayOid
2436 : *
2437 : * Pre-assign the type's array OID for use in pg_type.typarray
2438 : */
2439 : Oid
2440 71122 : AssignTypeArrayOid(void)
2441 : {
2442 : Oid type_array_oid;
2443 :
2444 : /* Use binary-upgrade override for pg_type.typarray? */
2445 71122 : if (IsBinaryUpgrade)
2446 : {
2447 1684 : if (!OidIsValid(binary_upgrade_next_array_pg_type_oid))
2448 0 : ereport(ERROR,
2449 : (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
2450 : errmsg("pg_type array OID value not set when in binary upgrade mode")));
2451 :
2452 1684 : type_array_oid = binary_upgrade_next_array_pg_type_oid;
2453 1684 : binary_upgrade_next_array_pg_type_oid = InvalidOid;
2454 : }
2455 : else
2456 : {
2457 69438 : Relation pg_type = table_open(TypeRelationId, AccessShareLock);
2458 :
2459 69438 : type_array_oid = GetNewOidWithIndex(pg_type, TypeOidIndexId,
2460 : Anum_pg_type_oid);
2461 69438 : table_close(pg_type, AccessShareLock);
2462 : }
2463 :
2464 71122 : return type_array_oid;
2465 : }
2466 :
2467 : /*
2468 : * AssignTypeMultirangeOid
2469 : *
2470 : * Pre-assign the range type's multirange OID for use in pg_type.oid
2471 : */
2472 : Oid
2473 190 : AssignTypeMultirangeOid(void)
2474 : {
2475 : Oid type_multirange_oid;
2476 :
2477 : /* Use binary-upgrade override for pg_type.oid? */
2478 190 : if (IsBinaryUpgrade)
2479 : {
2480 12 : if (!OidIsValid(binary_upgrade_next_mrng_pg_type_oid))
2481 0 : ereport(ERROR,
2482 : (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
2483 : errmsg("pg_type multirange OID value not set when in binary upgrade mode")));
2484 :
2485 12 : type_multirange_oid = binary_upgrade_next_mrng_pg_type_oid;
2486 12 : binary_upgrade_next_mrng_pg_type_oid = InvalidOid;
2487 : }
2488 : else
2489 : {
2490 178 : Relation pg_type = table_open(TypeRelationId, AccessShareLock);
2491 :
2492 178 : type_multirange_oid = GetNewOidWithIndex(pg_type, TypeOidIndexId,
2493 : Anum_pg_type_oid);
2494 178 : table_close(pg_type, AccessShareLock);
2495 : }
2496 :
2497 190 : return type_multirange_oid;
2498 : }
2499 :
2500 : /*
2501 : * AssignTypeMultirangeArrayOid
2502 : *
2503 : * Pre-assign the range type's multirange array OID for use in pg_type.typarray
2504 : */
2505 : Oid
2506 190 : AssignTypeMultirangeArrayOid(void)
2507 : {
2508 : Oid type_multirange_array_oid;
2509 :
2510 : /* Use binary-upgrade override for pg_type.oid? */
2511 190 : if (IsBinaryUpgrade)
2512 : {
2513 12 : if (!OidIsValid(binary_upgrade_next_mrng_array_pg_type_oid))
2514 0 : ereport(ERROR,
2515 : (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
2516 : errmsg("pg_type multirange array OID value not set when in binary upgrade mode")));
2517 :
2518 12 : type_multirange_array_oid = binary_upgrade_next_mrng_array_pg_type_oid;
2519 12 : binary_upgrade_next_mrng_array_pg_type_oid = InvalidOid;
2520 : }
2521 : else
2522 : {
2523 178 : Relation pg_type = table_open(TypeRelationId, AccessShareLock);
2524 :
2525 178 : type_multirange_array_oid = GetNewOidWithIndex(pg_type, TypeOidIndexId,
2526 : Anum_pg_type_oid);
2527 178 : table_close(pg_type, AccessShareLock);
2528 : }
2529 :
2530 190 : return type_multirange_array_oid;
2531 : }
2532 :
2533 :
2534 : /*-------------------------------------------------------------------
2535 : * DefineCompositeType
2536 : *
2537 : * Create a Composite Type relation.
2538 : * `DefineRelation' does all the work, we just provide the correct
2539 : * arguments!
2540 : *
2541 : * If the relation already exists, then 'DefineRelation' will abort
2542 : * the xact...
2543 : *
2544 : * Return type is the new type's object address.
2545 : *-------------------------------------------------------------------
2546 : */
2547 : ObjectAddress
2548 4534 : DefineCompositeType(RangeVar *typevar, List *coldeflist)
2549 : {
2550 4534 : CreateStmt *createStmt = makeNode(CreateStmt);
2551 : Oid old_type_oid;
2552 : Oid typeNamespace;
2553 : ObjectAddress address;
2554 :
2555 : /*
2556 : * now set the parameters for keys/inheritance etc. All of these are
2557 : * uninteresting for composite types...
2558 : */
2559 4534 : createStmt->relation = typevar;
2560 4534 : createStmt->tableElts = coldeflist;
2561 4534 : createStmt->inhRelations = NIL;
2562 4534 : createStmt->constraints = NIL;
2563 4534 : createStmt->options = NIL;
2564 4534 : createStmt->oncommit = ONCOMMIT_NOOP;
2565 4534 : createStmt->tablespacename = NULL;
2566 4534 : createStmt->if_not_exists = false;
2567 :
2568 : /*
2569 : * Check for collision with an existing type name. If there is one and
2570 : * it's an autogenerated array, we can rename it out of the way. This
2571 : * check is here mainly to get a better error message about a "type"
2572 : * instead of below about a "relation".
2573 : */
2574 4534 : typeNamespace = RangeVarGetAndCheckCreationNamespace(createStmt->relation,
2575 : NoLock, NULL);
2576 4534 : RangeVarAdjustRelationPersistence(createStmt->relation, typeNamespace);
2577 : old_type_oid =
2578 4534 : GetSysCacheOid2(TYPENAMENSP, Anum_pg_type_oid,
2579 : CStringGetDatum(createStmt->relation->relname),
2580 : ObjectIdGetDatum(typeNamespace));
2581 4534 : if (OidIsValid(old_type_oid))
2582 : {
2583 0 : if (!moveArrayTypeName(old_type_oid, createStmt->relation->relname, typeNamespace))
2584 0 : ereport(ERROR,
2585 : (errcode(ERRCODE_DUPLICATE_OBJECT),
2586 : errmsg("type \"%s\" already exists", createStmt->relation->relname)));
2587 : }
2588 :
2589 : /*
2590 : * Finally create the relation. This also creates the type.
2591 : */
2592 4534 : DefineRelation(createStmt, RELKIND_COMPOSITE_TYPE, InvalidOid, &address,
2593 : NULL);
2594 :
2595 4522 : return address;
2596 : }
2597 :
2598 : /*
2599 : * AlterDomainDefault
2600 : *
2601 : * Routine implementing ALTER DOMAIN SET/DROP DEFAULT statements.
2602 : *
2603 : * Returns ObjectAddress of the modified domain.
2604 : */
2605 : ObjectAddress
2606 14 : AlterDomainDefault(List *names, Node *defaultRaw)
2607 : {
2608 : TypeName *typename;
2609 : Oid domainoid;
2610 : HeapTuple tup;
2611 : ParseState *pstate;
2612 : Relation rel;
2613 : char *defaultValue;
2614 14 : Node *defaultExpr = NULL; /* NULL if no default specified */
2615 14 : Datum new_record[Natts_pg_type] = {0};
2616 14 : bool new_record_nulls[Natts_pg_type] = {0};
2617 14 : bool new_record_repl[Natts_pg_type] = {0};
2618 : HeapTuple newtuple;
2619 : Form_pg_type typTup;
2620 : ObjectAddress address;
2621 :
2622 : /* Make a TypeName so we can use standard type lookup machinery */
2623 14 : typename = makeTypeNameFromNameList(names);
2624 14 : domainoid = typenameTypeId(NULL, typename);
2625 :
2626 : /* Look up the domain in the type table */
2627 14 : rel = table_open(TypeRelationId, RowExclusiveLock);
2628 :
2629 14 : tup = SearchSysCacheCopy1(TYPEOID, ObjectIdGetDatum(domainoid));
2630 14 : if (!HeapTupleIsValid(tup))
2631 0 : elog(ERROR, "cache lookup failed for type %u", domainoid);
2632 14 : typTup = (Form_pg_type) GETSTRUCT(tup);
2633 :
2634 : /* Check it's a domain and check user has permission for ALTER DOMAIN */
2635 14 : checkDomainOwner(tup);
2636 :
2637 : /* Setup new tuple */
2638 :
2639 : /* Store the new default into the tuple */
2640 14 : if (defaultRaw)
2641 : {
2642 : /* Create a dummy ParseState for transformExpr */
2643 8 : pstate = make_parsestate(NULL);
2644 :
2645 : /*
2646 : * Cook the colDef->raw_expr into an expression. Note: Name is
2647 : * strictly for error message
2648 : */
2649 8 : defaultExpr = cookDefault(pstate, defaultRaw,
2650 : typTup->typbasetype,
2651 : typTup->typtypmod,
2652 8 : NameStr(typTup->typname),
2653 : 0);
2654 :
2655 : /*
2656 : * If the expression is just a NULL constant, we treat the command
2657 : * like ALTER ... DROP DEFAULT. (But see note for same test in
2658 : * DefineDomain.)
2659 : */
2660 8 : if (defaultExpr == NULL ||
2661 8 : (IsA(defaultExpr, Const) && ((Const *) defaultExpr)->constisnull))
2662 : {
2663 : /* Default is NULL, drop it */
2664 0 : defaultExpr = NULL;
2665 0 : new_record_nulls[Anum_pg_type_typdefaultbin - 1] = true;
2666 0 : new_record_repl[Anum_pg_type_typdefaultbin - 1] = true;
2667 0 : new_record_nulls[Anum_pg_type_typdefault - 1] = true;
2668 0 : new_record_repl[Anum_pg_type_typdefault - 1] = true;
2669 : }
2670 : else
2671 : {
2672 : /*
2673 : * Expression must be stored as a nodeToString result, but we also
2674 : * require a valid textual representation (mainly to make life
2675 : * easier for pg_dump).
2676 : */
2677 8 : defaultValue = deparse_expression(defaultExpr,
2678 : NIL, false, false);
2679 :
2680 : /*
2681 : * Form an updated tuple with the new default and write it back.
2682 : */
2683 8 : new_record[Anum_pg_type_typdefaultbin - 1] = CStringGetTextDatum(nodeToString(defaultExpr));
2684 :
2685 8 : new_record_repl[Anum_pg_type_typdefaultbin - 1] = true;
2686 8 : new_record[Anum_pg_type_typdefault - 1] = CStringGetTextDatum(defaultValue);
2687 8 : new_record_repl[Anum_pg_type_typdefault - 1] = true;
2688 : }
2689 : }
2690 : else
2691 : {
2692 : /* ALTER ... DROP DEFAULT */
2693 6 : new_record_nulls[Anum_pg_type_typdefaultbin - 1] = true;
2694 6 : new_record_repl[Anum_pg_type_typdefaultbin - 1] = true;
2695 6 : new_record_nulls[Anum_pg_type_typdefault - 1] = true;
2696 6 : new_record_repl[Anum_pg_type_typdefault - 1] = true;
2697 : }
2698 :
2699 14 : newtuple = heap_modify_tuple(tup, RelationGetDescr(rel),
2700 : new_record, new_record_nulls,
2701 : new_record_repl);
2702 :
2703 14 : CatalogTupleUpdate(rel, &tup->t_self, newtuple);
2704 :
2705 : /* Rebuild dependencies */
2706 14 : GenerateTypeDependencies(newtuple,
2707 : rel,
2708 : defaultExpr,
2709 : NULL, /* don't have typacl handy */
2710 : 0, /* relation kind is n/a */
2711 : false, /* a domain isn't an implicit array */
2712 : false, /* nor is it any kind of dependent type */
2713 : false, /* don't touch extension membership */
2714 : true); /* We do need to rebuild dependencies */
2715 :
2716 14 : InvokeObjectPostAlterHook(TypeRelationId, domainoid, 0);
2717 :
2718 14 : ObjectAddressSet(address, TypeRelationId, domainoid);
2719 :
2720 : /* Clean up */
2721 14 : table_close(rel, RowExclusiveLock);
2722 14 : heap_freetuple(newtuple);
2723 :
2724 14 : return address;
2725 : }
2726 :
2727 : /*
2728 : * AlterDomainNotNull
2729 : *
2730 : * Routine implementing ALTER DOMAIN SET/DROP NOT NULL statements.
2731 : *
2732 : * Returns ObjectAddress of the modified domain.
2733 : */
2734 : ObjectAddress
2735 36 : AlterDomainNotNull(List *names, bool notNull)
2736 : {
2737 : TypeName *typename;
2738 : Oid domainoid;
2739 : Relation typrel;
2740 : HeapTuple tup;
2741 : Form_pg_type typTup;
2742 36 : ObjectAddress address = InvalidObjectAddress;
2743 :
2744 : /* Make a TypeName so we can use standard type lookup machinery */
2745 36 : typename = makeTypeNameFromNameList(names);
2746 36 : domainoid = typenameTypeId(NULL, typename);
2747 :
2748 : /* Look up the domain in the type table */
2749 36 : typrel = table_open(TypeRelationId, RowExclusiveLock);
2750 :
2751 36 : tup = SearchSysCacheCopy1(TYPEOID, ObjectIdGetDatum(domainoid));
2752 36 : if (!HeapTupleIsValid(tup))
2753 0 : elog(ERROR, "cache lookup failed for type %u", domainoid);
2754 36 : typTup = (Form_pg_type) GETSTRUCT(tup);
2755 :
2756 : /* Check it's a domain and check user has permission for ALTER DOMAIN */
2757 36 : checkDomainOwner(tup);
2758 :
2759 : /* Is the domain already set to the desired constraint? */
2760 36 : if (typTup->typnotnull == notNull)
2761 : {
2762 0 : table_close(typrel, RowExclusiveLock);
2763 0 : return address;
2764 : }
2765 :
2766 36 : if (notNull)
2767 : {
2768 : Constraint *constr;
2769 :
2770 24 : constr = makeNode(Constraint);
2771 24 : constr->contype = CONSTR_NOTNULL;
2772 24 : constr->initially_valid = true;
2773 24 : constr->location = -1;
2774 :
2775 24 : domainAddNotNullConstraint(domainoid, typTup->typnamespace,
2776 : typTup->typbasetype, typTup->typtypmod,
2777 24 : constr, NameStr(typTup->typname), NULL);
2778 :
2779 24 : validateDomainNotNullConstraint(domainoid);
2780 : }
2781 : else
2782 : {
2783 : HeapTuple conTup;
2784 : ObjectAddress conobj;
2785 :
2786 12 : conTup = findDomainNotNullConstraint(domainoid);
2787 12 : if (conTup == NULL)
2788 0 : elog(ERROR, "could not find not-null constraint on domain \"%s\"", NameStr(typTup->typname));
2789 :
2790 12 : ObjectAddressSet(conobj, ConstraintRelationId, ((Form_pg_constraint) GETSTRUCT(conTup))->oid);
2791 12 : performDeletion(&conobj, DROP_RESTRICT, 0);
2792 : }
2793 :
2794 : /*
2795 : * Okay to update pg_type row. We can scribble on typTup because it's a
2796 : * copy.
2797 : */
2798 24 : typTup->typnotnull = notNull;
2799 :
2800 24 : CatalogTupleUpdate(typrel, &tup->t_self, tup);
2801 :
2802 24 : InvokeObjectPostAlterHook(TypeRelationId, domainoid, 0);
2803 :
2804 24 : ObjectAddressSet(address, TypeRelationId, domainoid);
2805 :
2806 : /* Clean up */
2807 24 : heap_freetuple(tup);
2808 24 : table_close(typrel, RowExclusiveLock);
2809 :
2810 24 : return address;
2811 : }
2812 :
2813 : /*
2814 : * AlterDomainDropConstraint
2815 : *
2816 : * Implements the ALTER DOMAIN DROP CONSTRAINT statement
2817 : *
2818 : * Returns ObjectAddress of the modified domain.
2819 : */
2820 : ObjectAddress
2821 60 : AlterDomainDropConstraint(List *names, const char *constrName,
2822 : DropBehavior behavior, bool missing_ok)
2823 : {
2824 : TypeName *typename;
2825 : Oid domainoid;
2826 : HeapTuple tup;
2827 : Relation rel;
2828 : Relation conrel;
2829 : SysScanDesc conscan;
2830 : ScanKeyData skey[3];
2831 : HeapTuple contup;
2832 60 : bool found = false;
2833 : ObjectAddress address;
2834 :
2835 : /* Make a TypeName so we can use standard type lookup machinery */
2836 60 : typename = makeTypeNameFromNameList(names);
2837 60 : domainoid = typenameTypeId(NULL, typename);
2838 :
2839 : /* Look up the domain in the type table */
2840 60 : rel = table_open(TypeRelationId, RowExclusiveLock);
2841 :
2842 60 : tup = SearchSysCacheCopy1(TYPEOID, ObjectIdGetDatum(domainoid));
2843 60 : if (!HeapTupleIsValid(tup))
2844 0 : elog(ERROR, "cache lookup failed for type %u", domainoid);
2845 :
2846 : /* Check it's a domain and check user has permission for ALTER DOMAIN */
2847 60 : checkDomainOwner(tup);
2848 :
2849 : /* Grab an appropriate lock on the pg_constraint relation */
2850 60 : conrel = table_open(ConstraintRelationId, RowExclusiveLock);
2851 :
2852 : /* Find and remove the target constraint */
2853 60 : ScanKeyInit(&skey[0],
2854 : Anum_pg_constraint_conrelid,
2855 : BTEqualStrategyNumber, F_OIDEQ,
2856 : ObjectIdGetDatum(InvalidOid));
2857 60 : ScanKeyInit(&skey[1],
2858 : Anum_pg_constraint_contypid,
2859 : BTEqualStrategyNumber, F_OIDEQ,
2860 : ObjectIdGetDatum(domainoid));
2861 60 : ScanKeyInit(&skey[2],
2862 : Anum_pg_constraint_conname,
2863 : BTEqualStrategyNumber, F_NAMEEQ,
2864 : CStringGetDatum(constrName));
2865 :
2866 60 : conscan = systable_beginscan(conrel, ConstraintRelidTypidNameIndexId, true,
2867 : NULL, 3, skey);
2868 :
2869 : /* There can be at most one matching row */
2870 60 : if ((contup = systable_getnext(conscan)) != NULL)
2871 : {
2872 48 : Form_pg_constraint construct = (Form_pg_constraint) GETSTRUCT(contup);
2873 : ObjectAddress conobj;
2874 :
2875 48 : if (construct->contype == CONSTRAINT_NOTNULL)
2876 : {
2877 12 : ((Form_pg_type) GETSTRUCT(tup))->typnotnull = false;
2878 12 : CatalogTupleUpdate(rel, &tup->t_self, tup);
2879 : }
2880 :
2881 48 : conobj.classId = ConstraintRelationId;
2882 48 : conobj.objectId = construct->oid;
2883 48 : conobj.objectSubId = 0;
2884 :
2885 48 : performDeletion(&conobj, behavior, 0);
2886 48 : found = true;
2887 : }
2888 :
2889 : /* Clean up after the scan */
2890 60 : systable_endscan(conscan);
2891 60 : table_close(conrel, RowExclusiveLock);
2892 :
2893 60 : if (!found)
2894 : {
2895 12 : if (!missing_ok)
2896 6 : ereport(ERROR,
2897 : (errcode(ERRCODE_UNDEFINED_OBJECT),
2898 : errmsg("constraint \"%s\" of domain \"%s\" does not exist",
2899 : constrName, TypeNameToString(typename))));
2900 : else
2901 6 : ereport(NOTICE,
2902 : (errmsg("constraint \"%s\" of domain \"%s\" does not exist, skipping",
2903 : constrName, TypeNameToString(typename))));
2904 : }
2905 :
2906 : /*
2907 : * We must send out an sinval message for the domain, to ensure that any
2908 : * dependent plans get rebuilt. Since this command doesn't change the
2909 : * domain's pg_type row, that won't happen automatically; do it manually.
2910 : */
2911 54 : CacheInvalidateHeapTuple(rel, tup, NULL);
2912 :
2913 54 : ObjectAddressSet(address, TypeRelationId, domainoid);
2914 :
2915 : /* Clean up */
2916 54 : table_close(rel, RowExclusiveLock);
2917 :
2918 54 : return address;
2919 : }
2920 :
2921 : /*
2922 : * AlterDomainAddConstraint
2923 : *
2924 : * Implements the ALTER DOMAIN .. ADD CONSTRAINT statement.
2925 : */
2926 : ObjectAddress
2927 174 : AlterDomainAddConstraint(List *names, Node *newConstraint,
2928 : ObjectAddress *constrAddr)
2929 : {
2930 : TypeName *typename;
2931 : Oid domainoid;
2932 : Relation typrel;
2933 : HeapTuple tup;
2934 : Form_pg_type typTup;
2935 : Constraint *constr;
2936 : char *ccbin;
2937 174 : ObjectAddress address = InvalidObjectAddress;
2938 :
2939 : /* Make a TypeName so we can use standard type lookup machinery */
2940 174 : typename = makeTypeNameFromNameList(names);
2941 174 : domainoid = typenameTypeId(NULL, typename);
2942 :
2943 : /* Look up the domain in the type table */
2944 174 : typrel = table_open(TypeRelationId, RowExclusiveLock);
2945 :
2946 174 : tup = SearchSysCacheCopy1(TYPEOID, ObjectIdGetDatum(domainoid));
2947 174 : if (!HeapTupleIsValid(tup))
2948 0 : elog(ERROR, "cache lookup failed for type %u", domainoid);
2949 174 : typTup = (Form_pg_type) GETSTRUCT(tup);
2950 :
2951 : /* Check it's a domain and check user has permission for ALTER DOMAIN */
2952 174 : checkDomainOwner(tup);
2953 :
2954 174 : if (!IsA(newConstraint, Constraint))
2955 0 : elog(ERROR, "unrecognized node type: %d",
2956 : (int) nodeTag(newConstraint));
2957 :
2958 174 : constr = (Constraint *) newConstraint;
2959 :
2960 : /* enforced by parser */
2961 : Assert(constr->contype == CONSTR_CHECK || constr->contype == CONSTR_NOTNULL);
2962 :
2963 174 : if (constr->contype == CONSTR_CHECK)
2964 : {
2965 : /*
2966 : * First, process the constraint expression and add an entry to
2967 : * pg_constraint.
2968 : */
2969 :
2970 144 : ccbin = domainAddCheckConstraint(domainoid, typTup->typnamespace,
2971 : typTup->typbasetype, typTup->typtypmod,
2972 144 : constr, NameStr(typTup->typname), constrAddr);
2973 :
2974 :
2975 : /*
2976 : * If requested to validate the constraint, test all values stored in
2977 : * the attributes based on the domain the constraint is being added
2978 : * to.
2979 : */
2980 138 : if (!constr->skip_validation)
2981 132 : validateDomainCheckConstraint(domainoid, ccbin);
2982 :
2983 : /*
2984 : * We must send out an sinval message for the domain, to ensure that
2985 : * any dependent plans get rebuilt. Since this command doesn't change
2986 : * the domain's pg_type row, that won't happen automatically; do it
2987 : * manually.
2988 : */
2989 78 : CacheInvalidateHeapTuple(typrel, tup, NULL);
2990 : }
2991 30 : else if (constr->contype == CONSTR_NOTNULL)
2992 : {
2993 : /* Is the domain already set NOT NULL? */
2994 30 : if (typTup->typnotnull)
2995 : {
2996 6 : table_close(typrel, RowExclusiveLock);
2997 6 : return address;
2998 : }
2999 24 : domainAddNotNullConstraint(domainoid, typTup->typnamespace,
3000 : typTup->typbasetype, typTup->typtypmod,
3001 24 : constr, NameStr(typTup->typname), constrAddr);
3002 :
3003 24 : if (!constr->skip_validation)
3004 24 : validateDomainNotNullConstraint(domainoid);
3005 :
3006 12 : typTup->typnotnull = true;
3007 12 : CatalogTupleUpdate(typrel, &tup->t_self, tup);
3008 : }
3009 :
3010 90 : ObjectAddressSet(address, TypeRelationId, domainoid);
3011 :
3012 : /* Clean up */
3013 90 : table_close(typrel, RowExclusiveLock);
3014 :
3015 90 : return address;
3016 : }
3017 :
3018 : /*
3019 : * AlterDomainValidateConstraint
3020 : *
3021 : * Implements the ALTER DOMAIN .. VALIDATE CONSTRAINT statement.
3022 : */
3023 : ObjectAddress
3024 12 : AlterDomainValidateConstraint(List *names, const char *constrName)
3025 : {
3026 : TypeName *typename;
3027 : Oid domainoid;
3028 : Relation typrel;
3029 : Relation conrel;
3030 : HeapTuple tup;
3031 : Form_pg_constraint con;
3032 : Form_pg_constraint copy_con;
3033 : char *conbin;
3034 : SysScanDesc scan;
3035 : Datum val;
3036 : HeapTuple tuple;
3037 : HeapTuple copyTuple;
3038 : ScanKeyData skey[3];
3039 : ObjectAddress address;
3040 :
3041 : /* Make a TypeName so we can use standard type lookup machinery */
3042 12 : typename = makeTypeNameFromNameList(names);
3043 12 : domainoid = typenameTypeId(NULL, typename);
3044 :
3045 : /* Look up the domain in the type table */
3046 12 : typrel = table_open(TypeRelationId, AccessShareLock);
3047 :
3048 12 : tup = SearchSysCache1(TYPEOID, ObjectIdGetDatum(domainoid));
3049 12 : if (!HeapTupleIsValid(tup))
3050 0 : elog(ERROR, "cache lookup failed for type %u", domainoid);
3051 :
3052 : /* Check it's a domain and check user has permission for ALTER DOMAIN */
3053 12 : checkDomainOwner(tup);
3054 :
3055 : /*
3056 : * Find and check the target constraint
3057 : */
3058 12 : conrel = table_open(ConstraintRelationId, RowExclusiveLock);
3059 :
3060 12 : ScanKeyInit(&skey[0],
3061 : Anum_pg_constraint_conrelid,
3062 : BTEqualStrategyNumber, F_OIDEQ,
3063 : ObjectIdGetDatum(InvalidOid));
3064 12 : ScanKeyInit(&skey[1],
3065 : Anum_pg_constraint_contypid,
3066 : BTEqualStrategyNumber, F_OIDEQ,
3067 : ObjectIdGetDatum(domainoid));
3068 12 : ScanKeyInit(&skey[2],
3069 : Anum_pg_constraint_conname,
3070 : BTEqualStrategyNumber, F_NAMEEQ,
3071 : CStringGetDatum(constrName));
3072 :
3073 12 : scan = systable_beginscan(conrel, ConstraintRelidTypidNameIndexId, true,
3074 : NULL, 3, skey);
3075 :
3076 : /* There can be at most one matching row */
3077 12 : if (!HeapTupleIsValid(tuple = systable_getnext(scan)))
3078 0 : ereport(ERROR,
3079 : (errcode(ERRCODE_UNDEFINED_OBJECT),
3080 : errmsg("constraint \"%s\" of domain \"%s\" does not exist",
3081 : constrName, TypeNameToString(typename))));
3082 :
3083 12 : con = (Form_pg_constraint) GETSTRUCT(tuple);
3084 12 : if (con->contype != CONSTRAINT_CHECK)
3085 0 : ereport(ERROR,
3086 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
3087 : errmsg("constraint \"%s\" of domain \"%s\" is not a check constraint",
3088 : constrName, TypeNameToString(typename))));
3089 :
3090 12 : val = SysCacheGetAttrNotNull(CONSTROID, tuple, Anum_pg_constraint_conbin);
3091 12 : conbin = TextDatumGetCString(val);
3092 :
3093 12 : validateDomainCheckConstraint(domainoid, conbin);
3094 :
3095 : /*
3096 : * Now update the catalog, while we have the door open.
3097 : */
3098 6 : copyTuple = heap_copytuple(tuple);
3099 6 : copy_con = (Form_pg_constraint) GETSTRUCT(copyTuple);
3100 6 : copy_con->convalidated = true;
3101 6 : CatalogTupleUpdate(conrel, ©Tuple->t_self, copyTuple);
3102 :
3103 6 : InvokeObjectPostAlterHook(ConstraintRelationId, con->oid, 0);
3104 :
3105 6 : ObjectAddressSet(address, TypeRelationId, domainoid);
3106 :
3107 6 : heap_freetuple(copyTuple);
3108 :
3109 6 : systable_endscan(scan);
3110 :
3111 6 : table_close(typrel, AccessShareLock);
3112 6 : table_close(conrel, RowExclusiveLock);
3113 :
3114 6 : ReleaseSysCache(tup);
3115 :
3116 6 : return address;
3117 : }
3118 :
3119 : /*
3120 : * Verify that all columns currently using the domain are not null.
3121 : */
3122 : static void
3123 48 : validateDomainNotNullConstraint(Oid domainoid)
3124 : {
3125 : List *rels;
3126 : ListCell *rt;
3127 :
3128 : /* Fetch relation list with attributes based on this domain */
3129 : /* ShareLock is sufficient to prevent concurrent data changes */
3130 :
3131 48 : rels = get_rels_with_domain(domainoid, ShareLock);
3132 :
3133 66 : foreach(rt, rels)
3134 : {
3135 42 : RelToCheck *rtc = (RelToCheck *) lfirst(rt);
3136 42 : Relation testrel = rtc->rel;
3137 42 : TupleDesc tupdesc = RelationGetDescr(testrel);
3138 : TupleTableSlot *slot;
3139 : TableScanDesc scan;
3140 : Snapshot snapshot;
3141 :
3142 : /* Scan all tuples in this relation */
3143 42 : snapshot = RegisterSnapshot(GetLatestSnapshot());
3144 42 : scan = table_beginscan(testrel, snapshot, 0, NULL);
3145 42 : slot = table_slot_create(testrel, NULL);
3146 60 : while (table_scan_getnextslot(scan, ForwardScanDirection, slot))
3147 : {
3148 : int i;
3149 :
3150 : /* Test attributes that are of the domain */
3151 90 : for (i = 0; i < rtc->natts; i++)
3152 : {
3153 72 : int attnum = rtc->atts[i];
3154 72 : Form_pg_attribute attr = TupleDescAttr(tupdesc, attnum - 1);
3155 :
3156 72 : if (slot_attisnull(slot, attnum))
3157 : {
3158 : /*
3159 : * In principle the auxiliary information for this error
3160 : * should be errdatatype(), but errtablecol() seems
3161 : * considerably more useful in practice. Since this code
3162 : * only executes in an ALTER DOMAIN command, the client
3163 : * should already know which domain is in question.
3164 : */
3165 24 : ereport(ERROR,
3166 : (errcode(ERRCODE_NOT_NULL_VIOLATION),
3167 : errmsg("column \"%s\" of table \"%s\" contains null values",
3168 : NameStr(attr->attname),
3169 : RelationGetRelationName(testrel)),
3170 : errtablecol(testrel, attnum)));
3171 : }
3172 : }
3173 : }
3174 18 : ExecDropSingleTupleTableSlot(slot);
3175 18 : table_endscan(scan);
3176 18 : UnregisterSnapshot(snapshot);
3177 :
3178 : /* Close each rel after processing, but keep lock */
3179 18 : table_close(testrel, NoLock);
3180 : }
3181 24 : }
3182 :
3183 : /*
3184 : * Verify that all columns currently using the domain satisfy the given check
3185 : * constraint expression.
3186 : */
3187 : static void
3188 144 : validateDomainCheckConstraint(Oid domainoid, const char *ccbin)
3189 : {
3190 144 : Expr *expr = (Expr *) stringToNode(ccbin);
3191 : List *rels;
3192 : ListCell *rt;
3193 : EState *estate;
3194 : ExprContext *econtext;
3195 : ExprState *exprstate;
3196 :
3197 : /* Need an EState to run ExecEvalExpr */
3198 144 : estate = CreateExecutorState();
3199 144 : econtext = GetPerTupleExprContext(estate);
3200 :
3201 : /* build execution state for expr */
3202 144 : exprstate = ExecPrepareExpr(expr, estate);
3203 :
3204 : /* Fetch relation list with attributes based on this domain */
3205 : /* ShareLock is sufficient to prevent concurrent data changes */
3206 :
3207 144 : rels = get_rels_with_domain(domainoid, ShareLock);
3208 :
3209 150 : foreach(rt, rels)
3210 : {
3211 72 : RelToCheck *rtc = (RelToCheck *) lfirst(rt);
3212 72 : Relation testrel = rtc->rel;
3213 72 : TupleDesc tupdesc = RelationGetDescr(testrel);
3214 : TupleTableSlot *slot;
3215 : TableScanDesc scan;
3216 : Snapshot snapshot;
3217 :
3218 : /* Scan all tuples in this relation */
3219 72 : snapshot = RegisterSnapshot(GetLatestSnapshot());
3220 72 : scan = table_beginscan(testrel, snapshot, 0, NULL);
3221 72 : slot = table_slot_create(testrel, NULL);
3222 168 : while (table_scan_getnextslot(scan, ForwardScanDirection, slot))
3223 : {
3224 : int i;
3225 :
3226 : /* Test attributes that are of the domain */
3227 228 : for (i = 0; i < rtc->natts; i++)
3228 : {
3229 132 : int attnum = rtc->atts[i];
3230 : Datum d;
3231 : bool isNull;
3232 : Datum conResult;
3233 132 : Form_pg_attribute attr = TupleDescAttr(tupdesc, attnum - 1);
3234 :
3235 132 : d = slot_getattr(slot, attnum, &isNull);
3236 :
3237 132 : econtext->domainValue_datum = d;
3238 132 : econtext->domainValue_isNull = isNull;
3239 :
3240 132 : conResult = ExecEvalExprSwitchContext(exprstate,
3241 : econtext,
3242 : &isNull);
3243 :
3244 132 : if (!isNull && !DatumGetBool(conResult))
3245 : {
3246 : /*
3247 : * In principle the auxiliary information for this error
3248 : * should be errdomainconstraint(), but errtablecol()
3249 : * seems considerably more useful in practice. Since this
3250 : * code only executes in an ALTER DOMAIN command, the
3251 : * client should already know which domain is in question,
3252 : * and which constraint too.
3253 : */
3254 36 : ereport(ERROR,
3255 : (errcode(ERRCODE_CHECK_VIOLATION),
3256 : errmsg("column \"%s\" of table \"%s\" contains values that violate the new constraint",
3257 : NameStr(attr->attname),
3258 : RelationGetRelationName(testrel)),
3259 : errtablecol(testrel, attnum)));
3260 : }
3261 : }
3262 :
3263 96 : ResetExprContext(econtext);
3264 : }
3265 36 : ExecDropSingleTupleTableSlot(slot);
3266 36 : table_endscan(scan);
3267 36 : UnregisterSnapshot(snapshot);
3268 :
3269 : /* Hold relation lock till commit (XXX bad for concurrency) */
3270 36 : table_close(testrel, NoLock);
3271 : }
3272 :
3273 78 : FreeExecutorState(estate);
3274 78 : }
3275 :
3276 : /*
3277 : * get_rels_with_domain
3278 : *
3279 : * Fetch all relations / attributes which are using the domain
3280 : *
3281 : * The result is a list of RelToCheck structs, one for each distinct
3282 : * relation, each containing one or more attribute numbers that are of
3283 : * the domain type. We have opened each rel and acquired the specified lock
3284 : * type on it.
3285 : *
3286 : * We support nested domains by including attributes that are of derived
3287 : * domain types. Current callers do not need to distinguish between attributes
3288 : * that are of exactly the given domain and those that are of derived domains.
3289 : *
3290 : * XXX this is completely broken because there is no way to lock the domain
3291 : * to prevent columns from being added or dropped while our command runs.
3292 : * We can partially protect against column drops by locking relations as we
3293 : * come across them, but there is still a race condition (the window between
3294 : * seeing a pg_depend entry and acquiring lock on the relation it references).
3295 : * Also, holding locks on all these relations simultaneously creates a non-
3296 : * trivial risk of deadlock. We can minimize but not eliminate the deadlock
3297 : * risk by using the weakest suitable lock (ShareLock for most callers).
3298 : *
3299 : * XXX the API for this is not sufficient to support checking domain values
3300 : * that are inside container types, such as composite types, arrays, or
3301 : * ranges. Currently we just error out if a container type containing the
3302 : * target domain is stored anywhere.
3303 : *
3304 : * Generally used for retrieving a list of tests when adding
3305 : * new constraints to a domain.
3306 : */
3307 : static List *
3308 204 : get_rels_with_domain(Oid domainOid, LOCKMODE lockmode)
3309 : {
3310 204 : List *result = NIL;
3311 204 : char *domainTypeName = format_type_be(domainOid);
3312 : Relation depRel;
3313 : ScanKeyData key[2];
3314 : SysScanDesc depScan;
3315 : HeapTuple depTup;
3316 :
3317 : Assert(lockmode != NoLock);
3318 :
3319 : /* since this function recurses, it could be driven to stack overflow */
3320 204 : check_stack_depth();
3321 :
3322 : /*
3323 : * We scan pg_depend to find those things that depend on the domain. (We
3324 : * assume we can ignore refobjsubid for a domain.)
3325 : */
3326 204 : depRel = table_open(DependRelationId, AccessShareLock);
3327 :
3328 204 : ScanKeyInit(&key[0],
3329 : Anum_pg_depend_refclassid,
3330 : BTEqualStrategyNumber, F_OIDEQ,
3331 : ObjectIdGetDatum(TypeRelationId));
3332 204 : ScanKeyInit(&key[1],
3333 : Anum_pg_depend_refobjid,
3334 : BTEqualStrategyNumber, F_OIDEQ,
3335 : ObjectIdGetDatum(domainOid));
3336 :
3337 204 : depScan = systable_beginscan(depRel, DependReferenceIndexId, true,
3338 : NULL, 2, key);
3339 :
3340 692 : while (HeapTupleIsValid(depTup = systable_getnext(depScan)))
3341 : {
3342 518 : Form_pg_depend pg_depend = (Form_pg_depend) GETSTRUCT(depTup);
3343 518 : RelToCheck *rtc = NULL;
3344 : ListCell *rellist;
3345 : Form_pg_attribute pg_att;
3346 : int ptr;
3347 :
3348 : /* Check for directly dependent types */
3349 518 : if (pg_depend->classid == TypeRelationId)
3350 : {
3351 222 : if (get_typtype(pg_depend->objid) == TYPTYPE_DOMAIN)
3352 : {
3353 : /*
3354 : * This is a sub-domain, so recursively add dependent columns
3355 : * to the output list. This is a bit inefficient since we may
3356 : * fail to combine RelToCheck entries when attributes of the
3357 : * same rel have different derived domain types, but it's
3358 : * probably not worth improving.
3359 : */
3360 12 : result = list_concat(result,
3361 12 : get_rels_with_domain(pg_depend->objid,
3362 : lockmode));
3363 : }
3364 : else
3365 : {
3366 : /*
3367 : * Otherwise, it is some container type using the domain, so
3368 : * fail if there are any columns of this type.
3369 : */
3370 210 : find_composite_type_dependencies(pg_depend->objid,
3371 : NULL,
3372 : domainTypeName);
3373 : }
3374 216 : continue;
3375 : }
3376 :
3377 : /* Else, ignore dependees that aren't user columns of relations */
3378 : /* (we assume system columns are never of domain types) */
3379 296 : if (pg_depend->classid != RelationRelationId ||
3380 216 : pg_depend->objsubid <= 0)
3381 80 : continue;
3382 :
3383 : /* See if we already have an entry for this relation */
3384 216 : foreach(rellist, result)
3385 : {
3386 42 : RelToCheck *rt = (RelToCheck *) lfirst(rellist);
3387 :
3388 42 : if (RelationGetRelid(rt->rel) == pg_depend->objid)
3389 : {
3390 42 : rtc = rt;
3391 42 : break;
3392 : }
3393 : }
3394 :
3395 216 : if (rtc == NULL)
3396 : {
3397 : /* First attribute found for this relation */
3398 : Relation rel;
3399 :
3400 : /* Acquire requested lock on relation */
3401 174 : rel = relation_open(pg_depend->objid, lockmode);
3402 :
3403 : /*
3404 : * Check to see if rowtype is stored anyplace as a composite-type
3405 : * column; if so we have to fail, for now anyway.
3406 : */
3407 174 : if (OidIsValid(rel->rd_rel->reltype))
3408 174 : find_composite_type_dependencies(rel->rd_rel->reltype,
3409 : NULL,
3410 : domainTypeName);
3411 :
3412 : /*
3413 : * Otherwise, we can ignore relations except those with both
3414 : * storage and user-chosen column types.
3415 : *
3416 : * XXX If an index-only scan could satisfy "col::some_domain" from
3417 : * a suitable expression index, this should also check expression
3418 : * index columns.
3419 : */
3420 150 : if (rel->rd_rel->relkind != RELKIND_RELATION &&
3421 36 : rel->rd_rel->relkind != RELKIND_MATVIEW)
3422 : {
3423 36 : relation_close(rel, lockmode);
3424 36 : continue;
3425 : }
3426 :
3427 : /* Build the RelToCheck entry with enough space for all atts */
3428 114 : rtc = (RelToCheck *) palloc(sizeof(RelToCheck));
3429 114 : rtc->rel = rel;
3430 114 : rtc->natts = 0;
3431 114 : rtc->atts = (int *) palloc(sizeof(int) * RelationGetNumberOfAttributes(rel));
3432 114 : result = lappend(result, rtc);
3433 : }
3434 :
3435 : /*
3436 : * Confirm column has not been dropped, and is of the expected type.
3437 : * This defends against an ALTER DROP COLUMN occurring just before we
3438 : * acquired lock ... but if the whole table were dropped, we'd still
3439 : * have a problem.
3440 : */
3441 156 : if (pg_depend->objsubid > RelationGetNumberOfAttributes(rtc->rel))
3442 0 : continue;
3443 156 : pg_att = TupleDescAttr(rtc->rel->rd_att, pg_depend->objsubid - 1);
3444 156 : if (pg_att->attisdropped || pg_att->atttypid != domainOid)
3445 0 : continue;
3446 :
3447 : /*
3448 : * Okay, add column to result. We store the columns in column-number
3449 : * order; this is just a hack to improve predictability of regression
3450 : * test output ...
3451 : */
3452 : Assert(rtc->natts < RelationGetNumberOfAttributes(rtc->rel));
3453 :
3454 156 : ptr = rtc->natts++;
3455 156 : while (ptr > 0 && rtc->atts[ptr - 1] > pg_depend->objsubid)
3456 : {
3457 0 : rtc->atts[ptr] = rtc->atts[ptr - 1];
3458 0 : ptr--;
3459 : }
3460 156 : rtc->atts[ptr] = pg_depend->objsubid;
3461 : }
3462 :
3463 174 : systable_endscan(depScan);
3464 :
3465 174 : relation_close(depRel, AccessShareLock);
3466 :
3467 174 : return result;
3468 : }
3469 :
3470 : /*
3471 : * checkDomainOwner
3472 : *
3473 : * Check that the type is actually a domain and that the current user
3474 : * has permission to do ALTER DOMAIN on it. Throw an error if not.
3475 : */
3476 : void
3477 302 : checkDomainOwner(HeapTuple tup)
3478 : {
3479 302 : Form_pg_type typTup = (Form_pg_type) GETSTRUCT(tup);
3480 :
3481 : /* Check that this is actually a domain */
3482 302 : if (typTup->typtype != TYPTYPE_DOMAIN)
3483 0 : ereport(ERROR,
3484 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
3485 : errmsg("%s is not a domain",
3486 : format_type_be(typTup->oid))));
3487 :
3488 : /* Permission check: must own type */
3489 302 : if (!object_ownercheck(TypeRelationId, typTup->oid, GetUserId()))
3490 0 : aclcheck_error_type(ACLCHECK_NOT_OWNER, typTup->oid);
3491 302 : }
3492 :
3493 : /*
3494 : * domainAddCheckConstraint - code shared between CREATE and ALTER DOMAIN
3495 : */
3496 : static char *
3497 718 : domainAddCheckConstraint(Oid domainOid, Oid domainNamespace, Oid baseTypeOid,
3498 : int typMod, Constraint *constr,
3499 : const char *domainName, ObjectAddress *constrAddr)
3500 : {
3501 : Node *expr;
3502 : char *ccbin;
3503 : ParseState *pstate;
3504 : CoerceToDomainValue *domVal;
3505 : Oid ccoid;
3506 :
3507 : Assert(constr->contype == CONSTR_CHECK);
3508 :
3509 : /*
3510 : * Assign or validate constraint name
3511 : */
3512 718 : if (constr->conname)
3513 : {
3514 412 : if (ConstraintNameIsUsed(CONSTRAINT_DOMAIN,
3515 : domainOid,
3516 412 : constr->conname))
3517 0 : ereport(ERROR,
3518 : (errcode(ERRCODE_DUPLICATE_OBJECT),
3519 : errmsg("constraint \"%s\" for domain \"%s\" already exists",
3520 : constr->conname, domainName)));
3521 : }
3522 : else
3523 306 : constr->conname = ChooseConstraintName(domainName,
3524 : NULL,
3525 : "check",
3526 : domainNamespace,
3527 : NIL);
3528 :
3529 : /*
3530 : * Convert the A_EXPR in raw_expr into an EXPR
3531 : */
3532 718 : pstate = make_parsestate(NULL);
3533 :
3534 : /*
3535 : * Set up a CoerceToDomainValue to represent the occurrence of VALUE in
3536 : * the expression. Note that it will appear to have the type of the base
3537 : * type, not the domain. This seems correct since within the check
3538 : * expression, we should not assume the input value can be considered a
3539 : * member of the domain.
3540 : */
3541 718 : domVal = makeNode(CoerceToDomainValue);
3542 718 : domVal->typeId = baseTypeOid;
3543 718 : domVal->typeMod = typMod;
3544 718 : domVal->collation = get_typcollation(baseTypeOid);
3545 718 : domVal->location = -1; /* will be set when/if used */
3546 :
3547 718 : pstate->p_pre_columnref_hook = replace_domain_constraint_value;
3548 718 : pstate->p_ref_hook_state = domVal;
3549 :
3550 718 : expr = transformExpr(pstate, constr->raw_expr, EXPR_KIND_DOMAIN_CHECK);
3551 :
3552 : /*
3553 : * Make sure it yields a boolean result.
3554 : */
3555 712 : expr = coerce_to_boolean(pstate, expr, "CHECK");
3556 :
3557 : /*
3558 : * Fix up collation information.
3559 : */
3560 712 : assign_expr_collations(pstate, expr);
3561 :
3562 : /*
3563 : * Domains don't allow variables (this is probably dead code now that
3564 : * add_missing_from is history, but let's be sure).
3565 : */
3566 1424 : if (pstate->p_rtable != NIL ||
3567 712 : contain_var_clause(expr))
3568 0 : ereport(ERROR,
3569 : (errcode(ERRCODE_INVALID_COLUMN_REFERENCE),
3570 : errmsg("cannot use table references in domain check constraint")));
3571 :
3572 : /*
3573 : * Convert to string form for storage.
3574 : */
3575 712 : ccbin = nodeToString(expr);
3576 :
3577 : /*
3578 : * Store the constraint in pg_constraint
3579 : */
3580 : ccoid =
3581 712 : CreateConstraintEntry(constr->conname, /* Constraint Name */
3582 : domainNamespace, /* namespace */
3583 : CONSTRAINT_CHECK, /* Constraint Type */
3584 : false, /* Is Deferrable */
3585 : false, /* Is Deferred */
3586 : true, /* Is Enforced */
3587 712 : !constr->skip_validation, /* Is Validated */
3588 : InvalidOid, /* no parent constraint */
3589 : InvalidOid, /* not a relation constraint */
3590 : NULL,
3591 : 0,
3592 : 0,
3593 : domainOid, /* domain constraint */
3594 : InvalidOid, /* no associated index */
3595 : InvalidOid, /* Foreign key fields */
3596 : NULL,
3597 : NULL,
3598 : NULL,
3599 : NULL,
3600 : 0,
3601 : ' ',
3602 : ' ',
3603 : NULL,
3604 : 0,
3605 : ' ',
3606 : NULL, /* not an exclusion constraint */
3607 : expr, /* Tree form of check constraint */
3608 : ccbin, /* Binary form of check constraint */
3609 : true, /* is local */
3610 : 0, /* inhcount */
3611 : false, /* connoinherit */
3612 : false, /* conperiod */
3613 712 : false); /* is_internal */
3614 712 : if (constrAddr)
3615 130 : ObjectAddressSet(*constrAddr, ConstraintRelationId, ccoid);
3616 :
3617 : /*
3618 : * Return the compiled constraint expression so the calling routine can
3619 : * perform any additional required tests.
3620 : */
3621 712 : return ccbin;
3622 : }
3623 :
3624 : /* Parser pre_columnref_hook for domain CHECK constraint parsing */
3625 : static Node *
3626 826 : replace_domain_constraint_value(ParseState *pstate, ColumnRef *cref)
3627 : {
3628 : /*
3629 : * Check for a reference to "value", and if that's what it is, replace
3630 : * with a CoerceToDomainValue as prepared for us by
3631 : * domainAddCheckConstraint. (We handle VALUE as a name, not a keyword, to
3632 : * avoid breaking a lot of applications that have used VALUE as a column
3633 : * name in the past.)
3634 : */
3635 826 : if (list_length(cref->fields) == 1)
3636 : {
3637 826 : Node *field1 = (Node *) linitial(cref->fields);
3638 : char *colname;
3639 :
3640 826 : colname = strVal(field1);
3641 826 : if (strcmp(colname, "value") == 0)
3642 : {
3643 826 : CoerceToDomainValue *domVal = copyObject(pstate->p_ref_hook_state);
3644 :
3645 : /* Propagate location knowledge, if any */
3646 826 : domVal->location = cref->location;
3647 826 : return (Node *) domVal;
3648 : }
3649 : }
3650 0 : return NULL;
3651 : }
3652 :
3653 : /*
3654 : * domainAddNotNullConstraint - code shared between CREATE and ALTER DOMAIN
3655 : */
3656 : static void
3657 134 : domainAddNotNullConstraint(Oid domainOid, Oid domainNamespace, Oid baseTypeOid,
3658 : int typMod, Constraint *constr,
3659 : const char *domainName, ObjectAddress *constrAddr)
3660 : {
3661 : Oid ccoid;
3662 :
3663 : Assert(constr->contype == CONSTR_NOTNULL);
3664 :
3665 : /*
3666 : * Assign or validate constraint name
3667 : */
3668 134 : if (constr->conname)
3669 : {
3670 12 : if (ConstraintNameIsUsed(CONSTRAINT_DOMAIN,
3671 : domainOid,
3672 12 : constr->conname))
3673 0 : ereport(ERROR,
3674 : (errcode(ERRCODE_DUPLICATE_OBJECT),
3675 : errmsg("constraint \"%s\" for domain \"%s\" already exists",
3676 : constr->conname, domainName)));
3677 : }
3678 : else
3679 122 : constr->conname = ChooseConstraintName(domainName,
3680 : NULL,
3681 : "not_null",
3682 : domainNamespace,
3683 : NIL);
3684 :
3685 : /*
3686 : * Store the constraint in pg_constraint
3687 : */
3688 : ccoid =
3689 134 : CreateConstraintEntry(constr->conname, /* Constraint Name */
3690 : domainNamespace, /* namespace */
3691 : CONSTRAINT_NOTNULL, /* Constraint Type */
3692 : false, /* Is Deferrable */
3693 : false, /* Is Deferred */
3694 : true, /* Is Enforced */
3695 134 : !constr->skip_validation, /* Is Validated */
3696 : InvalidOid, /* no parent constraint */
3697 : InvalidOid, /* not a relation constraint */
3698 : NULL,
3699 : 0,
3700 : 0,
3701 : domainOid, /* domain constraint */
3702 : InvalidOid, /* no associated index */
3703 : InvalidOid, /* Foreign key fields */
3704 : NULL,
3705 : NULL,
3706 : NULL,
3707 : NULL,
3708 : 0,
3709 : ' ',
3710 : ' ',
3711 : NULL,
3712 : 0,
3713 : ' ',
3714 : NULL, /* not an exclusion constraint */
3715 : NULL,
3716 : NULL,
3717 : true, /* is local */
3718 : 0, /* inhcount */
3719 : false, /* connoinherit */
3720 : false, /* conperiod */
3721 134 : false); /* is_internal */
3722 :
3723 134 : if (constrAddr)
3724 24 : ObjectAddressSet(*constrAddr, ConstraintRelationId, ccoid);
3725 134 : }
3726 :
3727 :
3728 : /*
3729 : * Execute ALTER TYPE RENAME
3730 : */
3731 : ObjectAddress
3732 32 : RenameType(RenameStmt *stmt)
3733 : {
3734 32 : List *names = castNode(List, stmt->object);
3735 32 : const char *newTypeName = stmt->newname;
3736 : TypeName *typename;
3737 : Oid typeOid;
3738 : Relation rel;
3739 : HeapTuple tup;
3740 : Form_pg_type typTup;
3741 : ObjectAddress address;
3742 :
3743 : /* Make a TypeName so we can use standard type lookup machinery */
3744 32 : typename = makeTypeNameFromNameList(names);
3745 32 : typeOid = typenameTypeId(NULL, typename);
3746 :
3747 : /* Look up the type in the type table */
3748 32 : rel = table_open(TypeRelationId, RowExclusiveLock);
3749 :
3750 32 : tup = SearchSysCacheCopy1(TYPEOID, ObjectIdGetDatum(typeOid));
3751 32 : if (!HeapTupleIsValid(tup))
3752 0 : elog(ERROR, "cache lookup failed for type %u", typeOid);
3753 32 : typTup = (Form_pg_type) GETSTRUCT(tup);
3754 :
3755 : /* check permissions on type */
3756 32 : if (!object_ownercheck(TypeRelationId, typeOid, GetUserId()))
3757 0 : aclcheck_error_type(ACLCHECK_NOT_OWNER, typeOid);
3758 :
3759 : /* ALTER DOMAIN used on a non-domain? */
3760 32 : if (stmt->renameType == OBJECT_DOMAIN && typTup->typtype != TYPTYPE_DOMAIN)
3761 0 : ereport(ERROR,
3762 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
3763 : errmsg("%s is not a domain",
3764 : format_type_be(typeOid))));
3765 :
3766 : /*
3767 : * If it's a composite type, we need to check that it really is a
3768 : * free-standing composite type, and not a table's rowtype. We want people
3769 : * to use ALTER TABLE not ALTER TYPE for that case.
3770 : */
3771 34 : if (typTup->typtype == TYPTYPE_COMPOSITE &&
3772 2 : get_rel_relkind(typTup->typrelid) != RELKIND_COMPOSITE_TYPE)
3773 0 : ereport(ERROR,
3774 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
3775 : errmsg("%s is a table's row type",
3776 : format_type_be(typeOid)),
3777 : /* translator: %s is an SQL ALTER command */
3778 : errhint("Use %s instead.",
3779 : "ALTER TABLE")));
3780 :
3781 : /* don't allow direct alteration of array types, either */
3782 32 : if (IsTrueArrayType(typTup))
3783 0 : ereport(ERROR,
3784 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
3785 : errmsg("cannot alter array type %s",
3786 : format_type_be(typeOid)),
3787 : errhint("You can alter type %s, which will alter the array type as well.",
3788 : format_type_be(typTup->typelem))));
3789 :
3790 : /* we do allow separate renaming of multirange types, though */
3791 :
3792 : /*
3793 : * If type is composite we need to rename associated pg_class entry too.
3794 : * RenameRelationInternal will call RenameTypeInternal automatically.
3795 : */
3796 32 : if (typTup->typtype == TYPTYPE_COMPOSITE)
3797 2 : RenameRelationInternal(typTup->typrelid, newTypeName, false, false);
3798 : else
3799 30 : RenameTypeInternal(typeOid, newTypeName,
3800 : typTup->typnamespace);
3801 :
3802 32 : ObjectAddressSet(address, TypeRelationId, typeOid);
3803 : /* Clean up */
3804 32 : table_close(rel, RowExclusiveLock);
3805 :
3806 32 : return address;
3807 : }
3808 :
3809 : /*
3810 : * Change the owner of a type.
3811 : */
3812 : ObjectAddress
3813 244 : AlterTypeOwner(List *names, Oid newOwnerId, ObjectType objecttype)
3814 : {
3815 : TypeName *typename;
3816 : Oid typeOid;
3817 : Relation rel;
3818 : HeapTuple tup;
3819 : HeapTuple newtup;
3820 : Form_pg_type typTup;
3821 : AclResult aclresult;
3822 : ObjectAddress address;
3823 :
3824 244 : rel = table_open(TypeRelationId, RowExclusiveLock);
3825 :
3826 : /* Make a TypeName so we can use standard type lookup machinery */
3827 244 : typename = makeTypeNameFromNameList(names);
3828 :
3829 : /* Use LookupTypeName here so that shell types can be processed */
3830 244 : tup = LookupTypeName(NULL, typename, NULL, false);
3831 244 : if (tup == NULL)
3832 0 : ereport(ERROR,
3833 : (errcode(ERRCODE_UNDEFINED_OBJECT),
3834 : errmsg("type \"%s\" does not exist",
3835 : TypeNameToString(typename))));
3836 244 : typeOid = typeTypeId(tup);
3837 :
3838 : /* Copy the syscache entry so we can scribble on it below */
3839 244 : newtup = heap_copytuple(tup);
3840 244 : ReleaseSysCache(tup);
3841 244 : tup = newtup;
3842 244 : typTup = (Form_pg_type) GETSTRUCT(tup);
3843 :
3844 : /* Don't allow ALTER DOMAIN on a type */
3845 244 : if (objecttype == OBJECT_DOMAIN && typTup->typtype != TYPTYPE_DOMAIN)
3846 0 : ereport(ERROR,
3847 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
3848 : errmsg("%s is not a domain",
3849 : format_type_be(typeOid))));
3850 :
3851 : /*
3852 : * If it's a composite type, we need to check that it really is a
3853 : * free-standing composite type, and not a table's rowtype. We want people
3854 : * to use ALTER TABLE not ALTER TYPE for that case.
3855 : */
3856 308 : if (typTup->typtype == TYPTYPE_COMPOSITE &&
3857 64 : get_rel_relkind(typTup->typrelid) != RELKIND_COMPOSITE_TYPE)
3858 0 : ereport(ERROR,
3859 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
3860 : errmsg("%s is a table's row type",
3861 : format_type_be(typeOid)),
3862 : /* translator: %s is an SQL ALTER command */
3863 : errhint("Use %s instead.",
3864 : "ALTER TABLE")));
3865 :
3866 : /* don't allow direct alteration of array types, either */
3867 244 : if (IsTrueArrayType(typTup))
3868 0 : ereport(ERROR,
3869 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
3870 : errmsg("cannot alter array type %s",
3871 : format_type_be(typeOid)),
3872 : errhint("You can alter type %s, which will alter the array type as well.",
3873 : format_type_be(typTup->typelem))));
3874 :
3875 : /* don't allow direct alteration of multirange types, either */
3876 244 : if (typTup->typtype == TYPTYPE_MULTIRANGE)
3877 : {
3878 6 : Oid rangetype = get_multirange_range(typeOid);
3879 :
3880 : /* We don't expect get_multirange_range to fail, but cope if so */
3881 6 : ereport(ERROR,
3882 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
3883 : errmsg("cannot alter multirange type %s",
3884 : format_type_be(typeOid)),
3885 : OidIsValid(rangetype) ?
3886 : errhint("You can alter type %s, which will alter the multirange type as well.",
3887 : format_type_be(rangetype)) : 0));
3888 : }
3889 :
3890 : /*
3891 : * If the new owner is the same as the existing owner, consider the
3892 : * command to have succeeded. This is for dump restoration purposes.
3893 : */
3894 238 : if (typTup->typowner != newOwnerId)
3895 : {
3896 : /* Superusers can always do it */
3897 6 : if (!superuser())
3898 : {
3899 : /* Otherwise, must be owner of the existing object */
3900 0 : if (!object_ownercheck(TypeRelationId, typTup->oid, GetUserId()))
3901 0 : aclcheck_error_type(ACLCHECK_NOT_OWNER, typTup->oid);
3902 :
3903 : /* Must be able to become new owner */
3904 0 : check_can_set_role(GetUserId(), newOwnerId);
3905 :
3906 : /* New owner must have CREATE privilege on namespace */
3907 0 : aclresult = object_aclcheck(NamespaceRelationId, typTup->typnamespace,
3908 : newOwnerId,
3909 : ACL_CREATE);
3910 0 : if (aclresult != ACLCHECK_OK)
3911 0 : aclcheck_error(aclresult, OBJECT_SCHEMA,
3912 0 : get_namespace_name(typTup->typnamespace));
3913 : }
3914 :
3915 6 : AlterTypeOwner_oid(typeOid, newOwnerId, true);
3916 : }
3917 :
3918 238 : ObjectAddressSet(address, TypeRelationId, typeOid);
3919 :
3920 : /* Clean up */
3921 238 : table_close(rel, RowExclusiveLock);
3922 :
3923 238 : return address;
3924 : }
3925 :
3926 : /*
3927 : * AlterTypeOwner_oid - change type owner unconditionally
3928 : *
3929 : * This function recurses to handle dependent types (arrays and multiranges).
3930 : * It invokes any necessary access object hooks. If hasDependEntry is true,
3931 : * this function modifies the pg_shdepend entry appropriately (this should be
3932 : * passed as false only for table rowtypes and dependent types).
3933 : *
3934 : * This is used by ALTER TABLE/TYPE OWNER commands, as well as by REASSIGN
3935 : * OWNED BY. It assumes the caller has done all needed checks.
3936 : */
3937 : void
3938 26 : AlterTypeOwner_oid(Oid typeOid, Oid newOwnerId, bool hasDependEntry)
3939 : {
3940 : Relation rel;
3941 : HeapTuple tup;
3942 : Form_pg_type typTup;
3943 :
3944 26 : rel = table_open(TypeRelationId, RowExclusiveLock);
3945 :
3946 26 : tup = SearchSysCache1(TYPEOID, ObjectIdGetDatum(typeOid));
3947 26 : if (!HeapTupleIsValid(tup))
3948 0 : elog(ERROR, "cache lookup failed for type %u", typeOid);
3949 26 : typTup = (Form_pg_type) GETSTRUCT(tup);
3950 :
3951 : /*
3952 : * If it's a composite type, invoke ATExecChangeOwner so that we fix up
3953 : * the pg_class entry properly. That will call back to
3954 : * AlterTypeOwnerInternal to take care of the pg_type entry(s).
3955 : */
3956 26 : if (typTup->typtype == TYPTYPE_COMPOSITE)
3957 8 : ATExecChangeOwner(typTup->typrelid, newOwnerId, true, AccessExclusiveLock);
3958 : else
3959 18 : AlterTypeOwnerInternal(typeOid, newOwnerId);
3960 :
3961 : /* Update owner dependency reference */
3962 26 : if (hasDependEntry)
3963 26 : changeDependencyOnOwner(TypeRelationId, typeOid, newOwnerId);
3964 :
3965 26 : InvokeObjectPostAlterHook(TypeRelationId, typeOid, 0);
3966 :
3967 26 : ReleaseSysCache(tup);
3968 26 : table_close(rel, RowExclusiveLock);
3969 26 : }
3970 :
3971 : /*
3972 : * AlterTypeOwnerInternal - bare-bones type owner change.
3973 : *
3974 : * This routine simply modifies the owner of a pg_type entry, and recurses
3975 : * to handle any dependent types.
3976 : */
3977 : void
3978 652 : AlterTypeOwnerInternal(Oid typeOid, Oid newOwnerId)
3979 : {
3980 : Relation rel;
3981 : HeapTuple tup;
3982 : Form_pg_type typTup;
3983 : Datum repl_val[Natts_pg_type];
3984 : bool repl_null[Natts_pg_type];
3985 : bool repl_repl[Natts_pg_type];
3986 : Acl *newAcl;
3987 : Datum aclDatum;
3988 : bool isNull;
3989 :
3990 652 : rel = table_open(TypeRelationId, RowExclusiveLock);
3991 :
3992 652 : tup = SearchSysCacheCopy1(TYPEOID, ObjectIdGetDatum(typeOid));
3993 652 : if (!HeapTupleIsValid(tup))
3994 0 : elog(ERROR, "cache lookup failed for type %u", typeOid);
3995 652 : typTup = (Form_pg_type) GETSTRUCT(tup);
3996 :
3997 652 : memset(repl_null, false, sizeof(repl_null));
3998 652 : memset(repl_repl, false, sizeof(repl_repl));
3999 :
4000 652 : repl_repl[Anum_pg_type_typowner - 1] = true;
4001 652 : repl_val[Anum_pg_type_typowner - 1] = ObjectIdGetDatum(newOwnerId);
4002 :
4003 652 : aclDatum = heap_getattr(tup,
4004 : Anum_pg_type_typacl,
4005 : RelationGetDescr(rel),
4006 : &isNull);
4007 : /* Null ACLs do not require changes */
4008 652 : if (!isNull)
4009 : {
4010 2 : newAcl = aclnewowner(DatumGetAclP(aclDatum),
4011 : typTup->typowner, newOwnerId);
4012 2 : repl_repl[Anum_pg_type_typacl - 1] = true;
4013 2 : repl_val[Anum_pg_type_typacl - 1] = PointerGetDatum(newAcl);
4014 : }
4015 :
4016 652 : tup = heap_modify_tuple(tup, RelationGetDescr(rel), repl_val, repl_null,
4017 : repl_repl);
4018 :
4019 652 : CatalogTupleUpdate(rel, &tup->t_self, tup);
4020 :
4021 : /* If it has an array type, update that too */
4022 652 : if (OidIsValid(typTup->typarray))
4023 326 : AlterTypeOwnerInternal(typTup->typarray, newOwnerId);
4024 :
4025 : /* If it is a range type, update the associated multirange too */
4026 652 : if (typTup->typtype == TYPTYPE_RANGE)
4027 : {
4028 12 : Oid multirange_typeid = get_range_multirange(typeOid);
4029 :
4030 12 : if (!OidIsValid(multirange_typeid))
4031 0 : ereport(ERROR,
4032 : (errcode(ERRCODE_UNDEFINED_OBJECT),
4033 : errmsg("could not find multirange type for data type %s",
4034 : format_type_be(typeOid))));
4035 12 : AlterTypeOwnerInternal(multirange_typeid, newOwnerId);
4036 : }
4037 :
4038 : /* Clean up */
4039 652 : table_close(rel, RowExclusiveLock);
4040 652 : }
4041 :
4042 : /*
4043 : * Execute ALTER TYPE SET SCHEMA
4044 : */
4045 : ObjectAddress
4046 18 : AlterTypeNamespace(List *names, const char *newschema, ObjectType objecttype,
4047 : Oid *oldschema)
4048 : {
4049 : TypeName *typename;
4050 : Oid typeOid;
4051 : Oid nspOid;
4052 : Oid oldNspOid;
4053 : ObjectAddresses *objsMoved;
4054 : ObjectAddress myself;
4055 :
4056 : /* Make a TypeName so we can use standard type lookup machinery */
4057 18 : typename = makeTypeNameFromNameList(names);
4058 18 : typeOid = typenameTypeId(NULL, typename);
4059 :
4060 : /* Don't allow ALTER DOMAIN on a non-domain type */
4061 18 : if (objecttype == OBJECT_DOMAIN && get_typtype(typeOid) != TYPTYPE_DOMAIN)
4062 0 : ereport(ERROR,
4063 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
4064 : errmsg("%s is not a domain",
4065 : format_type_be(typeOid))));
4066 :
4067 : /* get schema OID and check its permissions */
4068 18 : nspOid = LookupCreationNamespace(newschema);
4069 :
4070 18 : objsMoved = new_object_addresses();
4071 18 : oldNspOid = AlterTypeNamespace_oid(typeOid, nspOid, false, objsMoved);
4072 18 : free_object_addresses(objsMoved);
4073 :
4074 18 : if (oldschema)
4075 18 : *oldschema = oldNspOid;
4076 :
4077 18 : ObjectAddressSet(myself, TypeRelationId, typeOid);
4078 :
4079 18 : return myself;
4080 : }
4081 :
4082 : /*
4083 : * ALTER TYPE SET SCHEMA, where the caller has already looked up the OIDs
4084 : * of the type and the target schema and checked the schema's privileges.
4085 : *
4086 : * If ignoreDependent is true, we silently ignore dependent types
4087 : * (array types and table rowtypes) rather than raising errors.
4088 : *
4089 : * This entry point is exported for use by AlterObjectNamespace_oid,
4090 : * which doesn't want errors when it passes OIDs of dependent types.
4091 : *
4092 : * Returns the type's old namespace OID, or InvalidOid if we did nothing.
4093 : */
4094 : Oid
4095 34 : AlterTypeNamespace_oid(Oid typeOid, Oid nspOid, bool ignoreDependent,
4096 : ObjectAddresses *objsMoved)
4097 : {
4098 : Oid elemOid;
4099 :
4100 : /* check permissions on type */
4101 34 : if (!object_ownercheck(TypeRelationId, typeOid, GetUserId()))
4102 0 : aclcheck_error_type(ACLCHECK_NOT_OWNER, typeOid);
4103 :
4104 : /* don't allow direct alteration of array types */
4105 34 : elemOid = get_element_type(typeOid);
4106 34 : if (OidIsValid(elemOid) && get_array_type(elemOid) == typeOid)
4107 : {
4108 8 : if (ignoreDependent)
4109 8 : return InvalidOid;
4110 0 : ereport(ERROR,
4111 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
4112 : errmsg("cannot alter array type %s",
4113 : format_type_be(typeOid)),
4114 : errhint("You can alter type %s, which will alter the array type as well.",
4115 : format_type_be(elemOid))));
4116 : }
4117 :
4118 : /* and do the work */
4119 26 : return AlterTypeNamespaceInternal(typeOid, nspOid,
4120 : false, /* isImplicitArray */
4121 : ignoreDependent, /* ignoreDependent */
4122 : true, /* errorOnTableType */
4123 : objsMoved);
4124 : }
4125 :
4126 : /*
4127 : * Move specified type to new namespace.
4128 : *
4129 : * Caller must have already checked privileges.
4130 : *
4131 : * The function automatically recurses to process the type's array type,
4132 : * if any. isImplicitArray should be true only when doing this internal
4133 : * recursion (outside callers must never try to move an array type directly).
4134 : *
4135 : * If ignoreDependent is true, we silently don't process table types.
4136 : *
4137 : * If errorOnTableType is true, the function errors out if the type is
4138 : * a table type. ALTER TABLE has to be used to move a table to a new
4139 : * namespace. (This flag is ignored if ignoreDependent is true.)
4140 : *
4141 : * We also do nothing if the type is already listed in *objsMoved.
4142 : * After a successful move, we add the type to *objsMoved.
4143 : *
4144 : * Returns the type's old namespace OID, or InvalidOid if we did nothing.
4145 : */
4146 : Oid
4147 218 : AlterTypeNamespaceInternal(Oid typeOid, Oid nspOid,
4148 : bool isImplicitArray,
4149 : bool ignoreDependent,
4150 : bool errorOnTableType,
4151 : ObjectAddresses *objsMoved)
4152 : {
4153 : Relation rel;
4154 : HeapTuple tup;
4155 : Form_pg_type typform;
4156 : Oid oldNspOid;
4157 : Oid arrayOid;
4158 : bool isCompositeType;
4159 : ObjectAddress thisobj;
4160 :
4161 : /*
4162 : * Make sure we haven't moved this object previously.
4163 : */
4164 218 : thisobj.classId = TypeRelationId;
4165 218 : thisobj.objectId = typeOid;
4166 218 : thisobj.objectSubId = 0;
4167 :
4168 218 : if (object_address_present(&thisobj, objsMoved))
4169 0 : return InvalidOid;
4170 :
4171 218 : rel = table_open(TypeRelationId, RowExclusiveLock);
4172 :
4173 218 : tup = SearchSysCacheCopy1(TYPEOID, ObjectIdGetDatum(typeOid));
4174 218 : if (!HeapTupleIsValid(tup))
4175 0 : elog(ERROR, "cache lookup failed for type %u", typeOid);
4176 218 : typform = (Form_pg_type) GETSTRUCT(tup);
4177 :
4178 218 : oldNspOid = typform->typnamespace;
4179 218 : arrayOid = typform->typarray;
4180 :
4181 : /* If the type is already there, we scan skip these next few checks. */
4182 218 : if (oldNspOid != nspOid)
4183 : {
4184 : /* common checks on switching namespaces */
4185 182 : CheckSetNamespace(oldNspOid, nspOid);
4186 :
4187 : /* check for duplicate name (more friendly than unique-index failure) */
4188 182 : if (SearchSysCacheExists2(TYPENAMENSP,
4189 : NameGetDatum(&typform->typname),
4190 : ObjectIdGetDatum(nspOid)))
4191 0 : ereport(ERROR,
4192 : (errcode(ERRCODE_DUPLICATE_OBJECT),
4193 : errmsg("type \"%s\" already exists in schema \"%s\"",
4194 : NameStr(typform->typname),
4195 : get_namespace_name(nspOid))));
4196 : }
4197 :
4198 : /* Detect whether type is a composite type (but not a table rowtype) */
4199 218 : isCompositeType =
4200 318 : (typform->typtype == TYPTYPE_COMPOSITE &&
4201 100 : get_rel_relkind(typform->typrelid) == RELKIND_COMPOSITE_TYPE);
4202 :
4203 : /* Enforce not-table-type if requested */
4204 218 : if (typform->typtype == TYPTYPE_COMPOSITE && !isCompositeType)
4205 : {
4206 86 : if (ignoreDependent)
4207 : {
4208 2 : table_close(rel, RowExclusiveLock);
4209 2 : return InvalidOid;
4210 : }
4211 84 : if (errorOnTableType)
4212 0 : ereport(ERROR,
4213 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
4214 : errmsg("%s is a table's row type",
4215 : format_type_be(typeOid)),
4216 : /* translator: %s is an SQL ALTER command */
4217 : errhint("Use %s instead.", "ALTER TABLE")));
4218 : }
4219 :
4220 216 : if (oldNspOid != nspOid)
4221 : {
4222 : /* OK, modify the pg_type row */
4223 :
4224 : /* tup is a copy, so we can scribble directly on it */
4225 180 : typform->typnamespace = nspOid;
4226 :
4227 180 : CatalogTupleUpdate(rel, &tup->t_self, tup);
4228 : }
4229 :
4230 : /*
4231 : * Composite types have pg_class entries.
4232 : *
4233 : * We need to modify the pg_class tuple as well to reflect the change of
4234 : * schema.
4235 : */
4236 216 : if (isCompositeType)
4237 : {
4238 : Relation classRel;
4239 :
4240 14 : classRel = table_open(RelationRelationId, RowExclusiveLock);
4241 :
4242 14 : AlterRelationNamespaceInternal(classRel, typform->typrelid,
4243 : oldNspOid, nspOid,
4244 : false, objsMoved);
4245 :
4246 14 : table_close(classRel, RowExclusiveLock);
4247 :
4248 : /*
4249 : * Check for constraints associated with the composite type (we don't
4250 : * currently support this, but probably will someday).
4251 : */
4252 14 : AlterConstraintNamespaces(typform->typrelid, oldNspOid,
4253 : nspOid, false, objsMoved);
4254 : }
4255 : else
4256 : {
4257 : /* If it's a domain, it might have constraints */
4258 202 : if (typform->typtype == TYPTYPE_DOMAIN)
4259 6 : AlterConstraintNamespaces(typeOid, oldNspOid, nspOid, true,
4260 : objsMoved);
4261 : }
4262 :
4263 : /*
4264 : * Update dependency on schema, if any --- a table rowtype has not got
4265 : * one, and neither does an implicit array.
4266 : */
4267 216 : if (oldNspOid != nspOid &&
4268 172 : (isCompositeType || typform->typtype != TYPTYPE_COMPOSITE) &&
4269 108 : !isImplicitArray)
4270 18 : if (changeDependencyFor(TypeRelationId, typeOid,
4271 : NamespaceRelationId, oldNspOid, nspOid) != 1)
4272 0 : elog(ERROR, "could not change schema dependency for type \"%s\"",
4273 : format_type_be(typeOid));
4274 :
4275 216 : InvokeObjectPostAlterHook(TypeRelationId, typeOid, 0);
4276 :
4277 216 : heap_freetuple(tup);
4278 :
4279 216 : table_close(rel, RowExclusiveLock);
4280 :
4281 216 : add_exact_object_address(&thisobj, objsMoved);
4282 :
4283 : /* Recursively alter the associated array type, if any */
4284 216 : if (OidIsValid(arrayOid))
4285 108 : AlterTypeNamespaceInternal(arrayOid, nspOid,
4286 : true, /* isImplicitArray */
4287 : false, /* ignoreDependent */
4288 : true, /* errorOnTableType */
4289 : objsMoved);
4290 :
4291 216 : return oldNspOid;
4292 : }
4293 :
4294 : /*
4295 : * AlterType
4296 : * ALTER TYPE <type> SET (option = ...)
4297 : *
4298 : * NOTE: the set of changes that can be allowed here is constrained by many
4299 : * non-obvious implementation restrictions. Tread carefully when considering
4300 : * adding new flexibility.
4301 : */
4302 : ObjectAddress
4303 60 : AlterType(AlterTypeStmt *stmt)
4304 : {
4305 : ObjectAddress address;
4306 : Relation catalog;
4307 : TypeName *typename;
4308 : HeapTuple tup;
4309 : Oid typeOid;
4310 : Form_pg_type typForm;
4311 60 : bool requireSuper = false;
4312 : AlterTypeRecurseParams atparams;
4313 : ListCell *pl;
4314 :
4315 60 : catalog = table_open(TypeRelationId, RowExclusiveLock);
4316 :
4317 : /* Make a TypeName so we can use standard type lookup machinery */
4318 60 : typename = makeTypeNameFromNameList(stmt->typeName);
4319 60 : tup = typenameType(NULL, typename, NULL);
4320 :
4321 54 : typeOid = typeTypeId(tup);
4322 54 : typForm = (Form_pg_type) GETSTRUCT(tup);
4323 :
4324 : /* Process options */
4325 54 : memset(&atparams, 0, sizeof(atparams));
4326 154 : foreach(pl, stmt->options)
4327 : {
4328 106 : DefElem *defel = (DefElem *) lfirst(pl);
4329 :
4330 106 : if (strcmp(defel->defname, "storage") == 0)
4331 : {
4332 12 : char *a = defGetString(defel);
4333 :
4334 12 : if (pg_strcasecmp(a, "plain") == 0)
4335 6 : atparams.storage = TYPSTORAGE_PLAIN;
4336 6 : else if (pg_strcasecmp(a, "external") == 0)
4337 0 : atparams.storage = TYPSTORAGE_EXTERNAL;
4338 6 : else if (pg_strcasecmp(a, "extended") == 0)
4339 6 : atparams.storage = TYPSTORAGE_EXTENDED;
4340 0 : else if (pg_strcasecmp(a, "main") == 0)
4341 0 : atparams.storage = TYPSTORAGE_MAIN;
4342 : else
4343 0 : ereport(ERROR,
4344 : (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
4345 : errmsg("storage \"%s\" not recognized", a)));
4346 :
4347 : /*
4348 : * Validate the storage request. If the type isn't varlena, it
4349 : * certainly doesn't support non-PLAIN storage.
4350 : */
4351 12 : if (atparams.storage != TYPSTORAGE_PLAIN && typForm->typlen != -1)
4352 0 : ereport(ERROR,
4353 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
4354 : errmsg("fixed-size types must have storage PLAIN")));
4355 :
4356 : /*
4357 : * Switching from PLAIN to non-PLAIN is allowed, but it requires
4358 : * superuser, since we can't validate that the type's C functions
4359 : * will support it. Switching from non-PLAIN to PLAIN is
4360 : * disallowed outright, because it's not practical to ensure that
4361 : * no tables have toasted values of the type. Switching among
4362 : * different non-PLAIN settings is OK, since it just constitutes a
4363 : * change in the strategy requested for columns created in the
4364 : * future.
4365 : */
4366 12 : if (atparams.storage != TYPSTORAGE_PLAIN &&
4367 6 : typForm->typstorage == TYPSTORAGE_PLAIN)
4368 0 : requireSuper = true;
4369 12 : else if (atparams.storage == TYPSTORAGE_PLAIN &&
4370 6 : typForm->typstorage != TYPSTORAGE_PLAIN)
4371 6 : ereport(ERROR,
4372 : (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
4373 : errmsg("cannot change type's storage to PLAIN")));
4374 :
4375 6 : atparams.updateStorage = true;
4376 : }
4377 94 : else if (strcmp(defel->defname, "receive") == 0)
4378 : {
4379 28 : if (defel->arg != NULL)
4380 28 : atparams.receiveOid =
4381 28 : findTypeReceiveFunction(defGetQualifiedName(defel),
4382 : typeOid);
4383 : else
4384 0 : atparams.receiveOid = InvalidOid; /* NONE, remove function */
4385 28 : atparams.updateReceive = true;
4386 : /* Replacing an I/O function requires superuser. */
4387 28 : requireSuper = true;
4388 : }
4389 66 : else if (strcmp(defel->defname, "send") == 0)
4390 : {
4391 28 : if (defel->arg != NULL)
4392 28 : atparams.sendOid =
4393 28 : findTypeSendFunction(defGetQualifiedName(defel),
4394 : typeOid);
4395 : else
4396 0 : atparams.sendOid = InvalidOid; /* NONE, remove function */
4397 28 : atparams.updateSend = true;
4398 : /* Replacing an I/O function requires superuser. */
4399 28 : requireSuper = true;
4400 : }
4401 38 : else if (strcmp(defel->defname, "typmod_in") == 0)
4402 : {
4403 6 : if (defel->arg != NULL)
4404 6 : atparams.typmodinOid =
4405 6 : findTypeTypmodinFunction(defGetQualifiedName(defel));
4406 : else
4407 0 : atparams.typmodinOid = InvalidOid; /* NONE, remove function */
4408 6 : atparams.updateTypmodin = true;
4409 : /* Replacing an I/O function requires superuser. */
4410 6 : requireSuper = true;
4411 : }
4412 32 : else if (strcmp(defel->defname, "typmod_out") == 0)
4413 : {
4414 6 : if (defel->arg != NULL)
4415 6 : atparams.typmodoutOid =
4416 6 : findTypeTypmodoutFunction(defGetQualifiedName(defel));
4417 : else
4418 0 : atparams.typmodoutOid = InvalidOid; /* NONE, remove function */
4419 6 : atparams.updateTypmodout = true;
4420 : /* Replacing an I/O function requires superuser. */
4421 6 : requireSuper = true;
4422 : }
4423 26 : else if (strcmp(defel->defname, "analyze") == 0)
4424 : {
4425 6 : if (defel->arg != NULL)
4426 6 : atparams.analyzeOid =
4427 6 : findTypeAnalyzeFunction(defGetQualifiedName(defel),
4428 : typeOid);
4429 : else
4430 0 : atparams.analyzeOid = InvalidOid; /* NONE, remove function */
4431 6 : atparams.updateAnalyze = true;
4432 : /* Replacing an analyze function requires superuser. */
4433 6 : requireSuper = true;
4434 : }
4435 20 : else if (strcmp(defel->defname, "subscript") == 0)
4436 : {
4437 20 : if (defel->arg != NULL)
4438 20 : atparams.subscriptOid =
4439 20 : findTypeSubscriptingFunction(defGetQualifiedName(defel),
4440 : typeOid);
4441 : else
4442 0 : atparams.subscriptOid = InvalidOid; /* NONE, remove function */
4443 20 : atparams.updateSubscript = true;
4444 : /* Replacing a subscript function requires superuser. */
4445 20 : requireSuper = true;
4446 : }
4447 :
4448 : /*
4449 : * The rest of the options that CREATE accepts cannot be changed.
4450 : * Check for them so that we can give a meaningful error message.
4451 : */
4452 0 : else if (strcmp(defel->defname, "input") == 0 ||
4453 0 : strcmp(defel->defname, "output") == 0 ||
4454 0 : strcmp(defel->defname, "internallength") == 0 ||
4455 0 : strcmp(defel->defname, "passedbyvalue") == 0 ||
4456 0 : strcmp(defel->defname, "alignment") == 0 ||
4457 0 : strcmp(defel->defname, "like") == 0 ||
4458 0 : strcmp(defel->defname, "category") == 0 ||
4459 0 : strcmp(defel->defname, "preferred") == 0 ||
4460 0 : strcmp(defel->defname, "default") == 0 ||
4461 0 : strcmp(defel->defname, "element") == 0 ||
4462 0 : strcmp(defel->defname, "delimiter") == 0 ||
4463 0 : strcmp(defel->defname, "collatable") == 0)
4464 0 : ereport(ERROR,
4465 : (errcode(ERRCODE_SYNTAX_ERROR),
4466 : errmsg("type attribute \"%s\" cannot be changed",
4467 : defel->defname)));
4468 : else
4469 0 : ereport(ERROR,
4470 : (errcode(ERRCODE_SYNTAX_ERROR),
4471 : errmsg("type attribute \"%s\" not recognized",
4472 : defel->defname)));
4473 : }
4474 :
4475 : /*
4476 : * Permissions check. Require superuser if we decided the command
4477 : * requires that, else must own the type.
4478 : */
4479 48 : if (requireSuper)
4480 : {
4481 42 : if (!superuser())
4482 0 : ereport(ERROR,
4483 : (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
4484 : errmsg("must be superuser to alter a type")));
4485 : }
4486 : else
4487 : {
4488 6 : if (!object_ownercheck(TypeRelationId, typeOid, GetUserId()))
4489 0 : aclcheck_error_type(ACLCHECK_NOT_OWNER, typeOid);
4490 : }
4491 :
4492 : /*
4493 : * We disallow all forms of ALTER TYPE SET on types that aren't plain base
4494 : * types. It would for example be highly unsafe, not to mention
4495 : * pointless, to change the send/receive functions for a composite type.
4496 : * Moreover, pg_dump has no support for changing these properties on
4497 : * non-base types. We might weaken this someday, but not now.
4498 : *
4499 : * Note: if you weaken this enough to allow composite types, be sure to
4500 : * adjust the GenerateTypeDependencies call in AlterTypeRecurse.
4501 : */
4502 48 : if (typForm->typtype != TYPTYPE_BASE)
4503 0 : ereport(ERROR,
4504 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
4505 : errmsg("%s is not a base type",
4506 : format_type_be(typeOid))));
4507 :
4508 : /*
4509 : * For the same reasons, don't allow direct alteration of array types.
4510 : */
4511 48 : if (IsTrueArrayType(typForm))
4512 0 : ereport(ERROR,
4513 : (errcode(ERRCODE_WRONG_OBJECT_TYPE),
4514 : errmsg("%s is not a base type",
4515 : format_type_be(typeOid))));
4516 :
4517 : /* OK, recursively update this type and any arrays/domains over it */
4518 48 : AlterTypeRecurse(typeOid, false, tup, catalog, &atparams);
4519 :
4520 : /* Clean up */
4521 48 : ReleaseSysCache(tup);
4522 :
4523 48 : table_close(catalog, RowExclusiveLock);
4524 :
4525 48 : ObjectAddressSet(address, TypeRelationId, typeOid);
4526 :
4527 48 : return address;
4528 : }
4529 :
4530 : /*
4531 : * AlterTypeRecurse: one recursion step for AlterType()
4532 : *
4533 : * Apply the changes specified by "atparams" to the type identified by
4534 : * "typeOid", whose existing pg_type tuple is "tup". If necessary,
4535 : * recursively update its array type as well. Then search for any domains
4536 : * over this type, and recursively apply (most of) the same changes to those
4537 : * domains.
4538 : *
4539 : * We need this because the system generally assumes that a domain inherits
4540 : * many properties from its base type. See DefineDomain() above for details
4541 : * of what is inherited. Arrays inherit a smaller number of properties,
4542 : * but not none.
4543 : *
4544 : * There's a race condition here, in that some other transaction could
4545 : * concurrently add another domain atop this base type; we'd miss updating
4546 : * that one. Hence, be wary of allowing ALTER TYPE to change properties for
4547 : * which it'd be really fatal for a domain to be out of sync with its base
4548 : * type (typlen, for example). In practice, races seem unlikely to be an
4549 : * issue for plausible use-cases for ALTER TYPE. If one does happen, it could
4550 : * be fixed by re-doing the same ALTER TYPE once all prior transactions have
4551 : * committed.
4552 : */
4553 : static void
4554 66 : AlterTypeRecurse(Oid typeOid, bool isImplicitArray,
4555 : HeapTuple tup, Relation catalog,
4556 : AlterTypeRecurseParams *atparams)
4557 : {
4558 : Datum values[Natts_pg_type];
4559 : bool nulls[Natts_pg_type];
4560 : bool replaces[Natts_pg_type];
4561 : HeapTuple newtup;
4562 : SysScanDesc scan;
4563 : ScanKeyData key[1];
4564 : HeapTuple domainTup;
4565 :
4566 : /* Since this function recurses, it could be driven to stack overflow */
4567 66 : check_stack_depth();
4568 :
4569 : /* Update the current type's tuple */
4570 66 : memset(values, 0, sizeof(values));
4571 66 : memset(nulls, 0, sizeof(nulls));
4572 66 : memset(replaces, 0, sizeof(replaces));
4573 :
4574 66 : if (atparams->updateStorage)
4575 : {
4576 12 : replaces[Anum_pg_type_typstorage - 1] = true;
4577 12 : values[Anum_pg_type_typstorage - 1] = CharGetDatum(atparams->storage);
4578 : }
4579 66 : if (atparams->updateReceive)
4580 : {
4581 28 : replaces[Anum_pg_type_typreceive - 1] = true;
4582 28 : values[Anum_pg_type_typreceive - 1] = ObjectIdGetDatum(atparams->receiveOid);
4583 : }
4584 66 : if (atparams->updateSend)
4585 : {
4586 34 : replaces[Anum_pg_type_typsend - 1] = true;
4587 34 : values[Anum_pg_type_typsend - 1] = ObjectIdGetDatum(atparams->sendOid);
4588 : }
4589 66 : if (atparams->updateTypmodin)
4590 : {
4591 12 : replaces[Anum_pg_type_typmodin - 1] = true;
4592 12 : values[Anum_pg_type_typmodin - 1] = ObjectIdGetDatum(atparams->typmodinOid);
4593 : }
4594 66 : if (atparams->updateTypmodout)
4595 : {
4596 12 : replaces[Anum_pg_type_typmodout - 1] = true;
4597 12 : values[Anum_pg_type_typmodout - 1] = ObjectIdGetDatum(atparams->typmodoutOid);
4598 : }
4599 66 : if (atparams->updateAnalyze)
4600 : {
4601 12 : replaces[Anum_pg_type_typanalyze - 1] = true;
4602 12 : values[Anum_pg_type_typanalyze - 1] = ObjectIdGetDatum(atparams->analyzeOid);
4603 : }
4604 66 : if (atparams->updateSubscript)
4605 : {
4606 20 : replaces[Anum_pg_type_typsubscript - 1] = true;
4607 20 : values[Anum_pg_type_typsubscript - 1] = ObjectIdGetDatum(atparams->subscriptOid);
4608 : }
4609 :
4610 66 : newtup = heap_modify_tuple(tup, RelationGetDescr(catalog),
4611 : values, nulls, replaces);
4612 :
4613 66 : CatalogTupleUpdate(catalog, &newtup->t_self, newtup);
4614 :
4615 : /* Rebuild dependencies for this type */
4616 66 : GenerateTypeDependencies(newtup,
4617 : catalog,
4618 : NULL, /* don't have defaultExpr handy */
4619 : NULL, /* don't have typacl handy */
4620 : 0, /* we rejected composite types above */
4621 : isImplicitArray, /* it might be an array */
4622 : isImplicitArray, /* dependent iff it's array */
4623 : false, /* don't touch extension membership */
4624 : true);
4625 :
4626 66 : InvokeObjectPostAlterHook(TypeRelationId, typeOid, 0);
4627 :
4628 : /*
4629 : * Arrays inherit their base type's typmodin and typmodout, but none of
4630 : * the other properties we're concerned with here. Recurse to the array
4631 : * type if needed.
4632 : */
4633 66 : if (!isImplicitArray &&
4634 60 : (atparams->updateTypmodin || atparams->updateTypmodout))
4635 : {
4636 6 : Oid arrtypoid = ((Form_pg_type) GETSTRUCT(newtup))->typarray;
4637 :
4638 6 : if (OidIsValid(arrtypoid))
4639 : {
4640 : HeapTuple arrtup;
4641 : AlterTypeRecurseParams arrparams;
4642 :
4643 6 : arrtup = SearchSysCache1(TYPEOID, ObjectIdGetDatum(arrtypoid));
4644 6 : if (!HeapTupleIsValid(arrtup))
4645 0 : elog(ERROR, "cache lookup failed for type %u", arrtypoid);
4646 :
4647 6 : memset(&arrparams, 0, sizeof(arrparams));
4648 6 : arrparams.updateTypmodin = atparams->updateTypmodin;
4649 6 : arrparams.updateTypmodout = atparams->updateTypmodout;
4650 6 : arrparams.typmodinOid = atparams->typmodinOid;
4651 6 : arrparams.typmodoutOid = atparams->typmodoutOid;
4652 :
4653 6 : AlterTypeRecurse(arrtypoid, true, arrtup, catalog, &arrparams);
4654 :
4655 6 : ReleaseSysCache(arrtup);
4656 : }
4657 : }
4658 :
4659 : /*
4660 : * Now we need to recurse to domains. However, some properties are not
4661 : * inherited by domains, so clear the update flags for those.
4662 : */
4663 66 : atparams->updateReceive = false; /* domains use F_DOMAIN_RECV */
4664 66 : atparams->updateTypmodin = false; /* domains don't have typmods */
4665 66 : atparams->updateTypmodout = false;
4666 66 : atparams->updateSubscript = false; /* domains don't have subscriptors */
4667 :
4668 : /* Skip the scan if nothing remains to be done */
4669 66 : if (!(atparams->updateStorage ||
4670 54 : atparams->updateSend ||
4671 20 : atparams->updateAnalyze))
4672 20 : return;
4673 :
4674 : /* Search pg_type for possible domains over this type */
4675 46 : ScanKeyInit(&key[0],
4676 : Anum_pg_type_typbasetype,
4677 : BTEqualStrategyNumber, F_OIDEQ,
4678 : ObjectIdGetDatum(typeOid));
4679 :
4680 46 : scan = systable_beginscan(catalog, InvalidOid, false,
4681 : NULL, 1, key);
4682 :
4683 58 : while ((domainTup = systable_getnext(scan)) != NULL)
4684 : {
4685 12 : Form_pg_type domainForm = (Form_pg_type) GETSTRUCT(domainTup);
4686 :
4687 : /*
4688 : * Shouldn't have a nonzero typbasetype in a non-domain, but let's
4689 : * check
4690 : */
4691 12 : if (domainForm->typtype != TYPTYPE_DOMAIN)
4692 0 : continue;
4693 :
4694 12 : AlterTypeRecurse(domainForm->oid, false, domainTup, catalog, atparams);
4695 : }
4696 :
4697 46 : systable_endscan(scan);
4698 : }
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