LCOV - code coverage report
Current view: top level - contrib/btree_gist - btree_float4.c (source / functions) Hit Total Coverage
Test: PostgreSQL 19devel Lines: 72 88 81.8 %
Date: 2025-08-19 15:18:18 Functions: 26 28 92.9 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /*
       2             :  * contrib/btree_gist/btree_float4.c
       3             :  */
       4             : #include "postgres.h"
       5             : 
       6             : #include "btree_gist.h"
       7             : #include "btree_utils_num.h"
       8             : #include "utils/float.h"
       9             : #include "utils/rel.h"
      10             : #include "utils/sortsupport.h"
      11             : 
      12             : typedef struct float4key
      13             : {
      14             :     float4      lower;
      15             :     float4      upper;
      16             : } float4KEY;
      17             : 
      18             : /* GiST support functions */
      19           8 : PG_FUNCTION_INFO_V1(gbt_float4_compress);
      20           8 : PG_FUNCTION_INFO_V1(gbt_float4_fetch);
      21           8 : PG_FUNCTION_INFO_V1(gbt_float4_union);
      22           8 : PG_FUNCTION_INFO_V1(gbt_float4_picksplit);
      23           8 : PG_FUNCTION_INFO_V1(gbt_float4_consistent);
      24           8 : PG_FUNCTION_INFO_V1(gbt_float4_distance);
      25           8 : PG_FUNCTION_INFO_V1(gbt_float4_penalty);
      26           8 : PG_FUNCTION_INFO_V1(gbt_float4_same);
      27           8 : PG_FUNCTION_INFO_V1(gbt_float4_sortsupport);
      28             : 
      29             : static bool
      30        2728 : gbt_float4gt(const void *a, const void *b, FmgrInfo *flinfo)
      31             : {
      32        2728 :     return (*((const float4 *) a) > *((const float4 *) b));
      33             : }
      34             : static bool
      35        1044 : gbt_float4ge(const void *a, const void *b, FmgrInfo *flinfo)
      36             : {
      37        1044 :     return (*((const float4 *) a) >= *((const float4 *) b));
      38             : }
      39             : static bool
      40         546 : gbt_float4eq(const void *a, const void *b, FmgrInfo *flinfo)
      41             : {
      42         546 :     return (*((const float4 *) a) == *((const float4 *) b));
      43             : }
      44             : static bool
      45        1658 : gbt_float4le(const void *a, const void *b, FmgrInfo *flinfo)
      46             : {
      47        1658 :     return (*((const float4 *) a) <= *((const float4 *) b));
      48             : }
      49             : static bool
      50        3276 : gbt_float4lt(const void *a, const void *b, FmgrInfo *flinfo)
      51             : {
      52        3276 :     return (*((const float4 *) a) < *((const float4 *) b));
      53             : }
      54             : 
      55             : static int
      56        1092 : gbt_float4key_cmp(const void *a, const void *b, FmgrInfo *flinfo)
      57             : {
      58        1092 :     float4KEY  *ia = (float4KEY *) (((const Nsrt *) a)->t);
      59        1092 :     float4KEY  *ib = (float4KEY *) (((const Nsrt *) b)->t);
      60             : 
      61        1092 :     if (ia->lower == ib->lower)
      62             :     {
      63           0 :         if (ia->upper == ib->upper)
      64           0 :             return 0;
      65             : 
      66           0 :         return (ia->upper > ib->upper) ? 1 : -1;
      67             :     }
      68             : 
      69        1092 :     return (ia->lower > ib->lower) ? 1 : -1;
      70             : }
      71             : 
      72             : static float8
      73         548 : gbt_float4_dist(const void *a, const void *b, FmgrInfo *flinfo)
      74             : {
      75         548 :     return GET_FLOAT_DISTANCE(float4, a, b);
      76             : }
      77             : 
      78             : 
      79             : static const gbtree_ninfo tinfo =
      80             : {
      81             :     gbt_t_float4,
      82             :     sizeof(float4),
      83             :     8,                          /* sizeof(gbtreekey8) */
      84             :     gbt_float4gt,
      85             :     gbt_float4ge,
      86             :     gbt_float4eq,
      87             :     gbt_float4le,
      88             :     gbt_float4lt,
      89             :     gbt_float4key_cmp,
      90             :     gbt_float4_dist
      91             : };
      92             : 
      93             : 
      94           8 : PG_FUNCTION_INFO_V1(float4_dist);
      95             : Datum
      96        1100 : float4_dist(PG_FUNCTION_ARGS)
      97             : {
      98        1100 :     float4      a = PG_GETARG_FLOAT4(0);
      99        1100 :     float4      b = PG_GETARG_FLOAT4(1);
     100             :     float4      r;
     101             : 
     102        1100 :     r = a - b;
     103        1100 :     if (unlikely(isinf(r)) && !isinf(a) && !isinf(b))
     104           0 :         float_overflow_error();
     105             : 
     106        1100 :     PG_RETURN_FLOAT4(fabsf(r));
     107             : }
     108             : 
     109             : 
     110             : /**************************************************
     111             :  * GiST support functions
     112             :  **************************************************/
     113             : 
     114             : Datum
     115        1098 : gbt_float4_compress(PG_FUNCTION_ARGS)
     116             : {
     117        1098 :     GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
     118             : 
     119        1098 :     PG_RETURN_POINTER(gbt_num_compress(entry, &tinfo));
     120             : }
     121             : 
     122             : Datum
     123         546 : gbt_float4_fetch(PG_FUNCTION_ARGS)
     124             : {
     125         546 :     GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
     126             : 
     127         546 :     PG_RETURN_POINTER(gbt_num_fetch(entry, &tinfo));
     128             : }
     129             : 
     130             : Datum
     131        3846 : gbt_float4_consistent(PG_FUNCTION_ARGS)
     132             : {
     133        3846 :     GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
     134        3846 :     float4      query = PG_GETARG_FLOAT4(1);
     135        3846 :     StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
     136             : 
     137             :     /* Oid      subtype = PG_GETARG_OID(3); */
     138        3846 :     bool       *recheck = (bool *) PG_GETARG_POINTER(4);
     139        3846 :     float4KEY  *kkk = (float4KEY *) DatumGetPointer(entry->key);
     140             :     GBT_NUMKEY_R key;
     141             : 
     142             :     /* All cases served by this function are exact */
     143        3846 :     *recheck = false;
     144             : 
     145        3846 :     key.lower = (GBT_NUMKEY *) &kkk->lower;
     146        3846 :     key.upper = (GBT_NUMKEY *) &kkk->upper;
     147             : 
     148        3846 :     PG_RETURN_BOOL(gbt_num_consistent(&key, &query, &strategy,
     149             :                                       GIST_LEAF(entry), &tinfo,
     150             :                                       fcinfo->flinfo));
     151             : }
     152             : 
     153             : Datum
     154         550 : gbt_float4_distance(PG_FUNCTION_ARGS)
     155             : {
     156         550 :     GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
     157         550 :     float4      query = PG_GETARG_FLOAT4(1);
     158             : 
     159             :     /* Oid      subtype = PG_GETARG_OID(3); */
     160         550 :     float4KEY  *kkk = (float4KEY *) DatumGetPointer(entry->key);
     161             :     GBT_NUMKEY_R key;
     162             : 
     163         550 :     key.lower = (GBT_NUMKEY *) &kkk->lower;
     164         550 :     key.upper = (GBT_NUMKEY *) &kkk->upper;
     165             : 
     166         550 :     PG_RETURN_FLOAT8(gbt_num_distance(&key, &query, GIST_LEAF(entry),
     167             :                                       &tinfo, fcinfo->flinfo));
     168             : }
     169             : 
     170             : Datum
     171           2 : gbt_float4_union(PG_FUNCTION_ARGS)
     172             : {
     173           2 :     GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
     174           2 :     void       *out = palloc(sizeof(float4KEY));
     175             : 
     176           2 :     *(int *) PG_GETARG_POINTER(1) = sizeof(float4KEY);
     177           2 :     PG_RETURN_POINTER(gbt_num_union(out, entryvec, &tinfo, fcinfo->flinfo));
     178             : }
     179             : 
     180             : Datum
     181           0 : gbt_float4_penalty(PG_FUNCTION_ARGS)
     182             : {
     183           0 :     float4KEY  *origentry = (float4KEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
     184           0 :     float4KEY  *newentry = (float4KEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
     185           0 :     float      *result = (float *) PG_GETARG_POINTER(2);
     186             : 
     187           0 :     penalty_num(result, origentry->lower, origentry->upper, newentry->lower, newentry->upper);
     188             : 
     189           0 :     PG_RETURN_POINTER(result);
     190             : }
     191             : 
     192             : Datum
     193           2 : gbt_float4_picksplit(PG_FUNCTION_ARGS)
     194             : {
     195           2 :     PG_RETURN_POINTER(gbt_num_picksplit((GistEntryVector *) PG_GETARG_POINTER(0),
     196             :                                         (GIST_SPLITVEC *) PG_GETARG_POINTER(1),
     197             :                                         &tinfo, fcinfo->flinfo));
     198             : }
     199             : 
     200             : Datum
     201           0 : gbt_float4_same(PG_FUNCTION_ARGS)
     202             : {
     203           0 :     float4KEY  *b1 = (float4KEY *) PG_GETARG_POINTER(0);
     204           0 :     float4KEY  *b2 = (float4KEY *) PG_GETARG_POINTER(1);
     205           0 :     bool       *result = (bool *) PG_GETARG_POINTER(2);
     206             : 
     207           0 :     *result = gbt_num_same((void *) b1, (void *) b2, &tinfo, fcinfo->flinfo);
     208           0 :     PG_RETURN_POINTER(result);
     209             : }
     210             : 
     211             : static int
     212       10062 : gbt_float4_ssup_cmp(Datum x, Datum y, SortSupport ssup)
     213             : {
     214       10062 :     float4KEY  *arg1 = (float4KEY *) DatumGetPointer(x);
     215       10062 :     float4KEY  *arg2 = (float4KEY *) DatumGetPointer(y);
     216             : 
     217             :     /* for leaf items we expect lower == upper, so only compare lower */
     218       10062 :     return float4_cmp_internal(arg1->lower, arg2->lower);
     219             : }
     220             : 
     221             : Datum
     222           2 : gbt_float4_sortsupport(PG_FUNCTION_ARGS)
     223             : {
     224           2 :     SortSupport ssup = (SortSupport) PG_GETARG_POINTER(0);
     225             : 
     226           2 :     ssup->comparator = gbt_float4_ssup_cmp;
     227           2 :     ssup->ssup_extra = NULL;
     228             : 
     229           2 :     PG_RETURN_VOID();
     230             : }

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