TLA  Line data    Source code

       1                 : /*
       2                 :  * contrib/btree_gist/btree_bool.c
       3                 :  */
       4                 : #include "postgres.h"
       5                 : 
       6                 : #include "btree_gist.h"
       7                 : #include "btree_utils_num.h"
       8                 : #include "common/int.h"
       9                 : 
      10                 : typedef struct boolkey
      11                 : {
      12                 :     bool        lower;
      13                 :     bool        upper;
      14                 : } boolKEY;
      15                 : 
      16                 : /*
      17                 : ** bool ops
      18                 : */
      19 CBC           2 : PG_FUNCTION_INFO_V1(gbt_bool_compress);
      20               2 : PG_FUNCTION_INFO_V1(gbt_bool_fetch);
      21               2 : PG_FUNCTION_INFO_V1(gbt_bool_union);
      22               2 : PG_FUNCTION_INFO_V1(gbt_bool_picksplit);
      23               2 : PG_FUNCTION_INFO_V1(gbt_bool_consistent);
      24               2 : PG_FUNCTION_INFO_V1(gbt_bool_penalty);
      25               2 : PG_FUNCTION_INFO_V1(gbt_bool_same);
      26                 : 
      27                 : static bool
      28               2 : gbt_boolgt(const void *a, const void *b, FmgrInfo *flinfo)
      29                 : {
      30               2 :     return (*((const bool *) a) > *((const bool *) b));
      31                 : }
      32                 : static bool
      33               2 : gbt_boolge(const void *a, const void *b, FmgrInfo *flinfo)
      34                 : {
      35               2 :     return (*((const bool *) a) >= *((const bool *) b));
      36                 : }
      37                 : static bool
      38               6 : gbt_booleq(const void *a, const void *b, FmgrInfo *flinfo)
      39                 : {
      40               6 :     return (*((const bool *) a) == *((const bool *) b));
      41                 : }
      42                 : static bool
      43               2 : gbt_boolle(const void *a, const void *b, FmgrInfo *flinfo)
      44                 : {
      45               2 :     return (*((const bool *) a) <= *((const bool *) b));
      46                 : }
      47                 : static bool
      48               2 : gbt_boollt(const void *a, const void *b, FmgrInfo *flinfo)
      49                 : {
      50               2 :     return (*((const bool *) a) < *((const bool *) b));
      51                 : }
      52                 : 
      53                 : static int
      54 UBC           0 : gbt_boolkey_cmp(const void *a, const void *b, FmgrInfo *flinfo)
      55                 : {
      56               0 :     boolKEY    *ia = (boolKEY *) (((const Nsrt *) a)->t);
      57               0 :     boolKEY    *ib = (boolKEY *) (((const Nsrt *) b)->t);
      58                 : 
      59               0 :     if (ia->lower == ib->lower)
      60                 :     {
      61               0 :         if (ia->upper == ib->upper)
      62               0 :             return 0;
      63                 : 
      64               0 :         return (ia->upper > ib->upper) ? 1 : -1;
      65                 :     }
      66                 : 
      67               0 :     return (ia->lower > ib->lower) ? 1 : -1;
      68                 : }
      69                 : 
      70                 : 
      71                 : static const gbtree_ninfo tinfo =
      72                 : {
      73                 :     gbt_t_bool,
      74                 :     sizeof(bool),
      75                 :     2,                          /* sizeof(gbtreekey2) */
      76                 :     gbt_boolgt,
      77                 :     gbt_boolge,
      78                 :     gbt_booleq,
      79                 :     gbt_boolle,
      80                 :     gbt_boollt,
      81                 :     gbt_boolkey_cmp,
      82                 : };
      83                 : 
      84                 : 
      85                 : /**************************************************
      86                 :  * bool ops
      87                 :  **************************************************/
      88                 : 
      89                 : 
      90                 : Datum
      91 CBC           2 : gbt_bool_compress(PG_FUNCTION_ARGS)
      92                 : {
      93               2 :     GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
      94                 : 
      95               2 :     PG_RETURN_POINTER(gbt_num_compress(entry, &tinfo));
      96                 : }
      97                 : 
      98                 : Datum
      99               7 : gbt_bool_fetch(PG_FUNCTION_ARGS)
     100                 : {
     101               7 :     GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
     102                 : 
     103               7 :     PG_RETURN_POINTER(gbt_num_fetch(entry, &tinfo));
     104                 : }
     105                 : 
     106                 : Datum
     107              14 : gbt_bool_consistent(PG_FUNCTION_ARGS)
     108                 : {
     109              14 :     GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
     110              14 :     bool        query = PG_GETARG_INT16(1);
     111              14 :     StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
     112                 : 
     113                 :     /* Oid      subtype = PG_GETARG_OID(3); */
     114              14 :     bool       *recheck = (bool *) PG_GETARG_POINTER(4);
     115              14 :     boolKEY    *kkk = (boolKEY *) DatumGetPointer(entry->key);
     116                 :     GBT_NUMKEY_R key;
     117                 : 
     118                 :     /* All cases served by this function are exact */
     119              14 :     *recheck = false;
     120                 : 
     121              14 :     key.lower = (GBT_NUMKEY *) &kkk->lower;
     122              14 :     key.upper = (GBT_NUMKEY *) &kkk->upper;
     123                 : 
     124              14 :     PG_RETURN_BOOL(gbt_num_consistent(&key, (void *) &query, &strategy,
     125                 :                                       GIST_LEAF(entry), &tinfo, fcinfo->flinfo));
     126                 : }
     127                 : 
     128                 : 
     129                 : Datum
     130 UBC           0 : gbt_bool_union(PG_FUNCTION_ARGS)
     131                 : {
     132               0 :     GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
     133               0 :     void       *out = palloc(sizeof(boolKEY));
     134                 : 
     135               0 :     *(int *) PG_GETARG_POINTER(1) = sizeof(boolKEY);
     136               0 :     PG_RETURN_POINTER(gbt_num_union((void *) out, entryvec, &tinfo, fcinfo->flinfo));
     137                 : }
     138                 : 
     139                 : 
     140                 : Datum
     141               0 : gbt_bool_penalty(PG_FUNCTION_ARGS)
     142                 : {
     143               0 :     boolKEY    *origentry = (boolKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
     144               0 :     boolKEY    *newentry = (boolKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
     145               0 :     float      *result = (float *) PG_GETARG_POINTER(2);
     146                 : 
     147               0 :     penalty_num(result, origentry->lower, origentry->upper, newentry->lower, newentry->upper);
     148                 : 
     149               0 :     PG_RETURN_POINTER(result);
     150                 : }
     151                 : 
     152                 : Datum
     153               0 : gbt_bool_picksplit(PG_FUNCTION_ARGS)
     154                 : {
     155               0 :     PG_RETURN_POINTER(gbt_num_picksplit((GistEntryVector *) PG_GETARG_POINTER(0),
     156                 :                                         (GIST_SPLITVEC *) PG_GETARG_POINTER(1),
     157                 :                                         &tinfo, fcinfo->flinfo));
     158                 : }
     159                 : 
     160                 : Datum
     161               0 : gbt_bool_same(PG_FUNCTION_ARGS)
     162                 : {
     163               0 :     boolKEY    *b1 = (boolKEY *) PG_GETARG_POINTER(0);
     164               0 :     boolKEY    *b2 = (boolKEY *) PG_GETARG_POINTER(1);
     165               0 :     bool       *result = (bool *) PG_GETARG_POINTER(2);
     166                 : 
     167               0 :     *result = gbt_num_same((void *) b1, (void *) b2, &tinfo, fcinfo->flinfo);
     168               0 :     PG_RETURN_POINTER(result);
     169                 : }