mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-12-15 08:20:16 +08:00
ef770cbb69
- Fix wrong index results on text, char, varchar for multibyte strings - Fix some SIGFPE signals - Add support for infinite timestamps - Because of locale settings, btree_gist can not be a prefix index anymore (for text). Each node holds now just the lower and upper boundary.
186 lines
4.2 KiB
C
186 lines
4.2 KiB
C
#include "btree_gist.h"
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#include "btree_utils_num.h"
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#include "utils/builtins.h"
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#include "utils/inet.h"
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typedef struct
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{
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macaddr lower;
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macaddr upper;
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} macKEY;
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/*
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** OID ops
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*/
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PG_FUNCTION_INFO_V1(gbt_macad_compress);
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PG_FUNCTION_INFO_V1(gbt_macad_union);
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PG_FUNCTION_INFO_V1(gbt_macad_picksplit);
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PG_FUNCTION_INFO_V1(gbt_macad_consistent);
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PG_FUNCTION_INFO_V1(gbt_macad_penalty);
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PG_FUNCTION_INFO_V1(gbt_macad_same);
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Datum gbt_macad_compress(PG_FUNCTION_ARGS);
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Datum gbt_macad_union(PG_FUNCTION_ARGS);
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Datum gbt_macad_picksplit(PG_FUNCTION_ARGS);
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Datum gbt_macad_consistent(PG_FUNCTION_ARGS);
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Datum gbt_macad_penalty(PG_FUNCTION_ARGS);
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Datum gbt_macad_same(PG_FUNCTION_ARGS);
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static bool
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gbt_macadgt(const void *a, const void *b)
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{
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return DatumGetBool(DirectFunctionCall2(macaddr_gt, PointerGetDatum(a), PointerGetDatum(b)));
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}
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static bool
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gbt_macadge(const void *a, const void *b)
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{
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return DatumGetBool(DirectFunctionCall2(macaddr_ge, PointerGetDatum(a), PointerGetDatum(b)));
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}
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static bool
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gbt_macadeq(const void *a, const void *b)
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{
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return DatumGetBool(DirectFunctionCall2(macaddr_eq, PointerGetDatum(a), PointerGetDatum(b)));
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}
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static bool
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gbt_macadle(const void *a, const void *b)
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{
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return DatumGetBool(DirectFunctionCall2(macaddr_le, PointerGetDatum(a), PointerGetDatum(b)));
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}
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static bool
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gbt_macadlt(const void *a, const void *b)
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{
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return DatumGetBool(DirectFunctionCall2(macaddr_lt, PointerGetDatum(a), PointerGetDatum(b)));
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}
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static int
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gbt_macadkey_cmp(const void *a, const void *b)
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{
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return DatumGetInt32(
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DirectFunctionCall2(
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macaddr_cmp,
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PointerGetDatum(&((Nsrt *) a)->t[0]),
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PointerGetDatum(&((Nsrt *) b)->t[0])
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)
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);
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}
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static const gbtree_ninfo tinfo =
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{
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gbt_t_macad,
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sizeof(macaddr),
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gbt_macadgt,
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gbt_macadge,
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gbt_macadeq,
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gbt_macadle,
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gbt_macadlt,
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gbt_macadkey_cmp
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};
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/**************************************************
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* macaddr ops
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**************************************************/
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static uint64
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mac_2_uint64(macaddr *m)
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{
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unsigned char *mi = (unsigned char *) m;
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uint64 res = 0;
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int i;
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for (i = 0; i < 6; i++)
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res += (((uint64) mi[i]) << ((uint64) ((5 - i) * 8)));
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return res;
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}
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Datum
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gbt_macad_compress(PG_FUNCTION_ARGS)
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{
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GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
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GISTENTRY *retval = NULL;
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PG_RETURN_POINTER(gbt_num_compress(retval, entry, &tinfo));
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}
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Datum
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gbt_macad_consistent(PG_FUNCTION_ARGS)
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{
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GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
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macaddr *query = (macaddr *) PG_GETARG_POINTER(1);
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macKEY *kkk = (macKEY *) DatumGetPointer(entry->key);
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GBT_NUMKEY_R key;
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StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
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key.lower = (GBT_NUMKEY *) & kkk->lower;
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key.upper = (GBT_NUMKEY *) & kkk->upper;
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PG_RETURN_BOOL(
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gbt_num_consistent(&key, (void *) query, &strategy, GIST_LEAF(entry), &tinfo)
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);
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}
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Datum
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gbt_macad_union(PG_FUNCTION_ARGS)
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{
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GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
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void *out = palloc(sizeof(macKEY));
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*(int *) PG_GETARG_POINTER(1) = sizeof(macKEY);
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PG_RETURN_POINTER(gbt_num_union((void *) out, entryvec, &tinfo));
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}
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Datum
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gbt_macad_penalty(PG_FUNCTION_ARGS)
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{
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macKEY *origentry = (macKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
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macKEY *newentry = (macKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
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float *result = (float *) PG_GETARG_POINTER(2);
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uint64 iorg[2],
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inew[2];
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iorg[0] = mac_2_uint64(&origentry->lower);
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iorg[1] = mac_2_uint64(&origentry->upper);
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inew[0] = mac_2_uint64(&newentry->lower);
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inew[1] = mac_2_uint64(&newentry->upper);
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penalty_num(result,iorg[0],iorg[1],inew[0],inew[1]);
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PG_RETURN_POINTER(result);
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}
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Datum
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gbt_macad_picksplit(PG_FUNCTION_ARGS)
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{
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PG_RETURN_POINTER(gbt_num_picksplit(
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(GistEntryVector *) PG_GETARG_POINTER(0),
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(GIST_SPLITVEC *) PG_GETARG_POINTER(1),
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&tinfo
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));
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}
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Datum
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gbt_macad_same(PG_FUNCTION_ARGS)
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{
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macKEY *b1 = (macKEY *) PG_GETARG_POINTER(0);
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macKEY *b2 = (macKEY *) PG_GETARG_POINTER(1);
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bool *result = (bool *) PG_GETARG_POINTER(2);
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*result = gbt_num_same((void *) b1, (void *) b2, &tinfo);
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PG_RETURN_POINTER(result);
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}
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