LCOV - code coverage report
Current view: top level - contrib/btree_gist - btree_enum.c (source / functions) Hit Total Coverage
Test: PostgreSQL 19devel Lines: 57 73 78.1 %
Date: 2025-08-19 14:18:13 Functions: 20 23 87.0 %
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           8 : PG_FUNCTION_INFO_V1(gbt_enum_compress);
      24           8 : PG_FUNCTION_INFO_V1(gbt_enum_fetch);
      25           8 : PG_FUNCTION_INFO_V1(gbt_enum_union);
      26           8 : PG_FUNCTION_INFO_V1(gbt_enum_picksplit);
      27           8 : PG_FUNCTION_INFO_V1(gbt_enum_consistent);
      28           8 : PG_FUNCTION_INFO_V1(gbt_enum_penalty);
      29           8 : PG_FUNCTION_INFO_V1(gbt_enum_same);
      30           8 : PG_FUNCTION_INFO_V1(gbt_enum_sortsupport);
      31             : 
      32             : 
      33             : static bool
      34        3186 : gbt_enumgt(const void *a, const void *b, FmgrInfo *flinfo)
      35             : {
      36        3186 :     return DatumGetBool(CallerFInfoFunctionCall2(enum_gt, flinfo, InvalidOid,
      37             :                                                  ObjectIdGetDatum(*((const Oid *) a)),
      38             :                                                  ObjectIdGetDatum(*((const Oid *) b))));
      39             : }
      40             : static bool
      41        1072 : gbt_enumge(const void *a, const void *b, FmgrInfo *flinfo)
      42             : {
      43        1072 :     return DatumGetBool(CallerFInfoFunctionCall2(enum_ge, flinfo, InvalidOid,
      44             :                                                  ObjectIdGetDatum(*((const Oid *) a)),
      45             :                                                  ObjectIdGetDatum(*((const Oid *) b))));
      46             : }
      47             : static bool
      48        1064 : gbt_enumeq(const void *a, const void *b, FmgrInfo *flinfo)
      49             : {
      50        1064 :     return (*((const Oid *) a) == *((const Oid *) b));
      51             : }
      52             : static bool
      53        1080 : gbt_enumle(const void *a, const void *b, FmgrInfo *flinfo)
      54             : {
      55        1080 :     return DatumGetBool(CallerFInfoFunctionCall2(enum_le, flinfo, InvalidOid,
      56             :                                                  ObjectIdGetDatum(*((const Oid *) a)),
      57             :                                                  ObjectIdGetDatum(*((const Oid *) b))));
      58             : }
      59             : static bool
      60        3186 : gbt_enumlt(const void *a, const void *b, FmgrInfo *flinfo)
      61             : {
      62        3186 :     return DatumGetBool(CallerFInfoFunctionCall2(enum_lt, flinfo, InvalidOid,
      63             :                                                  ObjectIdGetDatum(*((const Oid *) a)),
      64             :                                                  ObjectIdGetDatum(*((const Oid *) b))));
      65             : }
      66             : 
      67             : static int
      68        1062 : gbt_enumkey_cmp(const void *a, const void *b, FmgrInfo *flinfo)
      69             : {
      70        1062 :     oidKEY     *ia = (oidKEY *) (((const Nsrt *) a)->t);
      71        1062 :     oidKEY     *ib = (oidKEY *) (((const Nsrt *) b)->t);
      72             : 
      73        1062 :     if (ia->lower == ib->lower)
      74             :     {
      75        1050 :         if (ia->upper == ib->upper)
      76        1050 :             return 0;
      77             : 
      78           0 :         return DatumGetInt32(CallerFInfoFunctionCall2(enum_cmp, flinfo, InvalidOid,
      79             :                                                       ObjectIdGetDatum(ia->upper),
      80             :                                                       ObjectIdGetDatum(ib->upper)));
      81             :     }
      82             : 
      83          12 :     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        1068 : gbt_enum_compress(PG_FUNCTION_ARGS)
     109             : {
     110        1068 :     GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
     111             : 
     112        1068 :     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        5340 : gbt_enum_consistent(PG_FUNCTION_ARGS)
     125             : {
     126        5340 :     GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
     127        5340 :     Oid         query = PG_GETARG_OID(1);
     128        5340 :     StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
     129             : 
     130             :     /* Oid      subtype = PG_GETARG_OID(3); */
     131        5340 :     bool       *recheck = (bool *) PG_GETARG_POINTER(4);
     132        5340 :     oidKEY     *kkk = (oidKEY *) DatumGetPointer(entry->key);
     133             :     GBT_NUMKEY_R key;
     134             : 
     135             :     /* All cases served by this function are exact */
     136        5340 :     *recheck = false;
     137             : 
     138        5340 :     key.lower = (GBT_NUMKEY *) &kkk->lower;
     139        5340 :     key.upper = (GBT_NUMKEY *) &kkk->upper;
     140             : 
     141        5340 :     PG_RETURN_BOOL(gbt_num_consistent(&key, &query, &strategy,
     142             :                                       GIST_LEAF(entry), &tinfo,
     143             :                                       fcinfo->flinfo));
     144             : }
     145             : 
     146             : Datum
     147           2 : gbt_enum_union(PG_FUNCTION_ARGS)
     148             : {
     149           2 :     GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
     150           2 :     void       *out = palloc(sizeof(oidKEY));
     151             : 
     152           2 :     *(int *) PG_GETARG_POINTER(1) = sizeof(oidKEY);
     153           2 :     PG_RETURN_POINTER(gbt_num_union(out, entryvec, &tinfo, fcinfo->flinfo));
     154             : }
     155             : 
     156             : Datum
     157           0 : gbt_enum_penalty(PG_FUNCTION_ARGS)
     158             : {
     159           0 :     oidKEY     *origentry = (oidKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
     160           0 :     oidKEY     *newentry = (oidKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
     161           0 :     float      *result = (float *) PG_GETARG_POINTER(2);
     162             : 
     163           0 :     penalty_num(result, origentry->lower, origentry->upper, newentry->lower, newentry->upper);
     164             : 
     165           0 :     PG_RETURN_POINTER(result);
     166             : }
     167             : 
     168             : Datum
     169           2 : gbt_enum_picksplit(PG_FUNCTION_ARGS)
     170             : {
     171           2 :     PG_RETURN_POINTER(gbt_num_picksplit((GistEntryVector *) PG_GETARG_POINTER(0),
     172             :                                         (GIST_SPLITVEC *) PG_GETARG_POINTER(1),
     173             :                                         &tinfo, fcinfo->flinfo));
     174             : }
     175             : 
     176             : Datum
     177           0 : gbt_enum_same(PG_FUNCTION_ARGS)
     178             : {
     179           0 :     oidKEY     *b1 = (oidKEY *) PG_GETARG_POINTER(0);
     180           0 :     oidKEY     *b2 = (oidKEY *) PG_GETARG_POINTER(1);
     181           0 :     bool       *result = (bool *) PG_GETARG_POINTER(2);
     182             : 
     183           0 :     *result = gbt_num_same((void *) b1, (void *) b2, &tinfo, fcinfo->flinfo);
     184           0 :     PG_RETURN_POINTER(result);
     185             : }
     186             : 
     187             : static int
     188        9856 : gbt_enum_ssup_cmp(Datum x, Datum y, SortSupport ssup)
     189             : {
     190        9856 :     oidKEY     *arg1 = (oidKEY *) DatumGetPointer(x);
     191        9856 :     oidKEY     *arg2 = (oidKEY *) DatumGetPointer(y);
     192             : 
     193             :     /* for leaf items we expect lower == upper, so only compare lower */
     194       19712 :     return DatumGetInt32(CallerFInfoFunctionCall2(enum_cmp,
     195        9856 :                                                   ssup->ssup_extra,
     196             :                                                   InvalidOid,
     197             :                                                   ObjectIdGetDatum(arg1->lower),
     198             :                                                   ObjectIdGetDatum(arg2->lower)));
     199             : }
     200             : 
     201             : Datum
     202           2 : gbt_enum_sortsupport(PG_FUNCTION_ARGS)
     203             : {
     204           2 :     SortSupport ssup = (SortSupport) PG_GETARG_POINTER(0);
     205             :     FmgrInfo   *flinfo;
     206             : 
     207           2 :     ssup->comparator = gbt_enum_ssup_cmp;
     208             : 
     209             :     /*
     210             :      * Since gbt_enum_ssup_cmp() uses enum_cmp() like the rest of the
     211             :      * comparison functions, it also needs to pass flinfo when calling it. The
     212             :      * caller to a SortSupport comparison function doesn't provide an FmgrInfo
     213             :      * struct, so look it up now, save it in ssup_extra and use it in
     214             :      * gbt_enum_ssup_cmp() later.
     215             :      */
     216           2 :     flinfo = MemoryContextAlloc(ssup->ssup_cxt, sizeof(FmgrInfo));
     217           2 :     fmgr_info_cxt(F_ENUM_CMP, flinfo, ssup->ssup_cxt);
     218           2 :     ssup->ssup_extra = flinfo;
     219             : 
     220           2 :     PG_RETURN_VOID();
     221             : }

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