LCOV - code coverage report
Current view: top level - contrib/btree_gist - btree_enum.c (source / functions) Coverage Total Hit
Test: PostgreSQL 19devel Lines: 78.1 % 73 57
Test Date: 2026-03-03 11:15:01 Functions: 87.0 % 23 20
Legend: Lines:     hit not hit

            Line data    Source code
       1              : /*
       2              :  * contrib/btree_gist/btree_enum.c
       3              :  */
       4              : #include "postgres.h"
       5              : 
       6              : #include "btree_gist.h"
       7              : #include "btree_utils_num.h"
       8              : #include "fmgr.h"
       9              : #include "utils/fmgrprotos.h"
      10              : #include "utils/fmgroids.h"
      11              : #include "utils/rel.h"
      12              : #include "utils/sortsupport.h"
      13              : 
      14              : /* enums are really Oids, so we just use the same structure */
      15              : 
      16              : typedef struct
      17              : {
      18              :     Oid         lower;
      19              :     Oid         upper;
      20              : } oidKEY;
      21              : 
      22              : /* GiST support functions */
      23            4 : PG_FUNCTION_INFO_V1(gbt_enum_compress);
      24            4 : PG_FUNCTION_INFO_V1(gbt_enum_fetch);
      25            4 : PG_FUNCTION_INFO_V1(gbt_enum_union);
      26            4 : PG_FUNCTION_INFO_V1(gbt_enum_picksplit);
      27            4 : PG_FUNCTION_INFO_V1(gbt_enum_consistent);
      28            4 : PG_FUNCTION_INFO_V1(gbt_enum_penalty);
      29            4 : PG_FUNCTION_INFO_V1(gbt_enum_same);
      30            4 : PG_FUNCTION_INFO_V1(gbt_enum_sortsupport);
      31              : 
      32              : 
      33              : static bool
      34         1593 : gbt_enumgt(const void *a, const void *b, FmgrInfo *flinfo)
      35              : {
      36         1593 :     return DatumGetBool(CallerFInfoFunctionCall2(enum_gt, flinfo, InvalidOid,
      37              :                                                  ObjectIdGetDatum(*((const Oid *) a)),
      38              :                                                  ObjectIdGetDatum(*((const Oid *) b))));
      39              : }
      40              : static bool
      41          536 : gbt_enumge(const void *a, const void *b, FmgrInfo *flinfo)
      42              : {
      43          536 :     return DatumGetBool(CallerFInfoFunctionCall2(enum_ge, flinfo, InvalidOid,
      44              :                                                  ObjectIdGetDatum(*((const Oid *) a)),
      45              :                                                  ObjectIdGetDatum(*((const Oid *) b))));
      46              : }
      47              : static bool
      48          532 : gbt_enumeq(const void *a, const void *b, FmgrInfo *flinfo)
      49              : {
      50          532 :     return (*((const Oid *) a) == *((const Oid *) b));
      51              : }
      52              : static bool
      53          540 : gbt_enumle(const void *a, const void *b, FmgrInfo *flinfo)
      54              : {
      55          540 :     return DatumGetBool(CallerFInfoFunctionCall2(enum_le, flinfo, InvalidOid,
      56              :                                                  ObjectIdGetDatum(*((const Oid *) a)),
      57              :                                                  ObjectIdGetDatum(*((const Oid *) b))));
      58              : }
      59              : static bool
      60         1593 : gbt_enumlt(const void *a, const void *b, FmgrInfo *flinfo)
      61              : {
      62         1593 :     return DatumGetBool(CallerFInfoFunctionCall2(enum_lt, flinfo, InvalidOid,
      63              :                                                  ObjectIdGetDatum(*((const Oid *) a)),
      64              :                                                  ObjectIdGetDatum(*((const Oid *) b))));
      65              : }
      66              : 
      67              : static int
      68          531 : gbt_enumkey_cmp(const void *a, const void *b, FmgrInfo *flinfo)
      69              : {
      70          531 :     oidKEY     *ia = (oidKEY *) (((const Nsrt *) a)->t);
      71          531 :     oidKEY     *ib = (oidKEY *) (((const Nsrt *) b)->t);
      72              : 
      73          531 :     if (ia->lower == ib->lower)
      74              :     {
      75          525 :         if (ia->upper == ib->upper)
      76          525 :             return 0;
      77              : 
      78            0 :         return DatumGetInt32(CallerFInfoFunctionCall2(enum_cmp, flinfo, InvalidOid,
      79              :                                                       ObjectIdGetDatum(ia->upper),
      80              :                                                       ObjectIdGetDatum(ib->upper)));
      81              :     }
      82              : 
      83            6 :     return DatumGetInt32(CallerFInfoFunctionCall2(enum_cmp, flinfo, InvalidOid,
      84              :                                                   ObjectIdGetDatum(ia->lower),
      85              :                                                   ObjectIdGetDatum(ib->lower)));
      86              : }
      87              : 
      88              : static const gbtree_ninfo tinfo =
      89              : {
      90              :     gbt_t_enum,
      91              :     sizeof(Oid),
      92              :     8,                          /* sizeof(gbtreekey8) */
      93              :     gbt_enumgt,
      94              :     gbt_enumge,
      95              :     gbt_enumeq,
      96              :     gbt_enumle,
      97              :     gbt_enumlt,
      98              :     gbt_enumkey_cmp,
      99              :     NULL                        /* no KNN support at least for now */
     100              : };
     101              : 
     102              : 
     103              : /**************************************************
     104              :  * GiST support functions
     105              :  **************************************************/
     106              : 
     107              : Datum
     108          534 : gbt_enum_compress(PG_FUNCTION_ARGS)
     109              : {
     110          534 :     GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
     111              : 
     112          534 :     PG_RETURN_POINTER(gbt_num_compress(entry, &tinfo));
     113              : }
     114              : 
     115              : Datum
     116            0 : gbt_enum_fetch(PG_FUNCTION_ARGS)
     117              : {
     118            0 :     GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
     119              : 
     120            0 :     PG_RETURN_POINTER(gbt_num_fetch(entry, &tinfo));
     121              : }
     122              : 
     123              : Datum
     124         2670 : gbt_enum_consistent(PG_FUNCTION_ARGS)
     125              : {
     126         2670 :     GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
     127         2670 :     Oid         query = PG_GETARG_OID(1);
     128         2670 :     StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
     129              : #ifdef NOT_USED
     130              :     Oid         subtype = PG_GETARG_OID(3);
     131              : #endif
     132         2670 :     bool       *recheck = (bool *) PG_GETARG_POINTER(4);
     133         2670 :     oidKEY     *kkk = (oidKEY *) DatumGetPointer(entry->key);
     134              :     GBT_NUMKEY_R key;
     135              : 
     136              :     /* All cases served by this function are exact */
     137         2670 :     *recheck = false;
     138              : 
     139         2670 :     key.lower = (GBT_NUMKEY *) &kkk->lower;
     140         2670 :     key.upper = (GBT_NUMKEY *) &kkk->upper;
     141              : 
     142         2670 :     PG_RETURN_BOOL(gbt_num_consistent(&key, &query, &strategy,
     143              :                                       GIST_LEAF(entry), &tinfo,
     144              :                                       fcinfo->flinfo));
     145              : }
     146              : 
     147              : Datum
     148            1 : gbt_enum_union(PG_FUNCTION_ARGS)
     149              : {
     150            1 :     GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
     151            1 :     void       *out = palloc(sizeof(oidKEY));
     152              : 
     153            1 :     *(int *) PG_GETARG_POINTER(1) = sizeof(oidKEY);
     154            1 :     PG_RETURN_POINTER(gbt_num_union(out, entryvec, &tinfo, fcinfo->flinfo));
     155              : }
     156              : 
     157              : Datum
     158            0 : gbt_enum_penalty(PG_FUNCTION_ARGS)
     159              : {
     160            0 :     oidKEY     *origentry = (oidKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
     161            0 :     oidKEY     *newentry = (oidKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
     162            0 :     float      *result = (float *) PG_GETARG_POINTER(2);
     163              : 
     164            0 :     penalty_num(result, origentry->lower, origentry->upper, newentry->lower, newentry->upper);
     165              : 
     166            0 :     PG_RETURN_POINTER(result);
     167              : }
     168              : 
     169              : Datum
     170            1 : gbt_enum_picksplit(PG_FUNCTION_ARGS)
     171              : {
     172            1 :     PG_RETURN_POINTER(gbt_num_picksplit((GistEntryVector *) PG_GETARG_POINTER(0),
     173              :                                         (GIST_SPLITVEC *) PG_GETARG_POINTER(1),
     174              :                                         &tinfo, fcinfo->flinfo));
     175              : }
     176              : 
     177              : Datum
     178            0 : gbt_enum_same(PG_FUNCTION_ARGS)
     179              : {
     180            0 :     oidKEY     *b1 = (oidKEY *) PG_GETARG_POINTER(0);
     181            0 :     oidKEY     *b2 = (oidKEY *) PG_GETARG_POINTER(1);
     182            0 :     bool       *result = (bool *) PG_GETARG_POINTER(2);
     183              : 
     184            0 :     *result = gbt_num_same((void *) b1, (void *) b2, &tinfo, fcinfo->flinfo);
     185            0 :     PG_RETURN_POINTER(result);
     186              : }
     187              : 
     188              : static int
     189         4928 : gbt_enum_ssup_cmp(Datum x, Datum y, SortSupport ssup)
     190              : {
     191         4928 :     oidKEY     *arg1 = (oidKEY *) DatumGetPointer(x);
     192         4928 :     oidKEY     *arg2 = (oidKEY *) DatumGetPointer(y);
     193              : 
     194              :     /* for leaf items we expect lower == upper, so only compare lower */
     195         9856 :     return DatumGetInt32(CallerFInfoFunctionCall2(enum_cmp,
     196         4928 :                                                   ssup->ssup_extra,
     197              :                                                   InvalidOid,
     198              :                                                   ObjectIdGetDatum(arg1->lower),
     199              :                                                   ObjectIdGetDatum(arg2->lower)));
     200              : }
     201              : 
     202              : Datum
     203            1 : gbt_enum_sortsupport(PG_FUNCTION_ARGS)
     204              : {
     205            1 :     SortSupport ssup = (SortSupport) PG_GETARG_POINTER(0);
     206              :     FmgrInfo   *flinfo;
     207              : 
     208            1 :     ssup->comparator = gbt_enum_ssup_cmp;
     209              : 
     210              :     /*
     211              :      * Since gbt_enum_ssup_cmp() uses enum_cmp() like the rest of the
     212              :      * comparison functions, it also needs to pass flinfo when calling it. The
     213              :      * caller to a SortSupport comparison function doesn't provide an FmgrInfo
     214              :      * struct, so look it up now, save it in ssup_extra and use it in
     215              :      * gbt_enum_ssup_cmp() later.
     216              :      */
     217            1 :     flinfo = MemoryContextAlloc(ssup->ssup_cxt, sizeof(FmgrInfo));
     218            1 :     fmgr_info_cxt(F_ENUM_CMP, flinfo, ssup->ssup_cxt);
     219            1 :     ssup->ssup_extra = flinfo;
     220              : 
     221            1 :     PG_RETURN_VOID();
     222              : }
        

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