PostgreSQL Source Code git master
btree_float8.c
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1/*
2 * contrib/btree_gist/btree_float8.c
3 */
4#include "postgres.h"
5
6#include "btree_gist.h"
7#include "btree_utils_num.h"
8#include "utils/float.h"
9
10typedef struct float8key
11{
15
16/*
17** float8 ops
18*/
27
28
29static bool
30gbt_float8gt(const void *a, const void *b, FmgrInfo *flinfo)
31{
32 return (*((const float8 *) a) > *((const float8 *) b));
33}
34static bool
35gbt_float8ge(const void *a, const void *b, FmgrInfo *flinfo)
36{
37 return (*((const float8 *) a) >= *((const float8 *) b));
38}
39static bool
40gbt_float8eq(const void *a, const void *b, FmgrInfo *flinfo)
41{
42 return (*((const float8 *) a) == *((const float8 *) b));
43}
44static bool
45gbt_float8le(const void *a, const void *b, FmgrInfo *flinfo)
46{
47 return (*((const float8 *) a) <= *((const float8 *) b));
48}
49static bool
50gbt_float8lt(const void *a, const void *b, FmgrInfo *flinfo)
51{
52 return (*((const float8 *) a) < *((const float8 *) b));
53}
54
55static int
56gbt_float8key_cmp(const void *a, const void *b, FmgrInfo *flinfo)
57{
58 float8KEY *ia = (float8KEY *) (((const Nsrt *) a)->t);
59 float8KEY *ib = (float8KEY *) (((const Nsrt *) b)->t);
60
61 if (ia->lower == ib->lower)
62 {
63 if (ia->upper == ib->upper)
64 return 0;
65
66 return (ia->upper > ib->upper) ? 1 : -1;
67 }
68
69 return (ia->lower > ib->lower) ? 1 : -1;
70}
71
72static float8
73gbt_float8_dist(const void *a, const void *b, FmgrInfo *flinfo)
74{
75 float8 arg1 = *(const float8 *) a;
76 float8 arg2 = *(const float8 *) b;
77 float8 r;
78
79 r = arg1 - arg2;
80 if (unlikely(isinf(r)) && !isinf(arg1) && !isinf(arg2))
82 return fabs(r);
83}
84
85
86static const gbtree_ninfo tinfo =
87{
89 sizeof(float8),
90 16, /* sizeof(gbtreekey16) */
98};
99
100
102Datum
104{
107 float8 r;
108
109 r = a - b;
110 if (unlikely(isinf(r)) && !isinf(a) && !isinf(b))
112
113 PG_RETURN_FLOAT8(fabs(r));
114}
115
116/**************************************************
117 * float8 ops
118 **************************************************/
119
120
121Datum
123{
124 GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
125
127}
128
129Datum
131{
132 GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
133
135}
136
137Datum
139{
140 GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
141 float8 query = PG_GETARG_FLOAT8(1);
143
144 /* Oid subtype = PG_GETARG_OID(3); */
145 bool *recheck = (bool *) PG_GETARG_POINTER(4);
146 float8KEY *kkk = (float8KEY *) DatumGetPointer(entry->key);
148
149 /* All cases served by this function are exact */
150 *recheck = false;
151
152 key.lower = (GBT_NUMKEY *) &kkk->lower;
153 key.upper = (GBT_NUMKEY *) &kkk->upper;
154
155 PG_RETURN_BOOL(gbt_num_consistent(&key, &query, &strategy,
156 GIST_LEAF(entry), &tinfo,
157 fcinfo->flinfo));
158}
159
160
161Datum
163{
164 GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
165 float8 query = PG_GETARG_FLOAT8(1);
166
167 /* Oid subtype = PG_GETARG_OID(3); */
168 float8KEY *kkk = (float8KEY *) DatumGetPointer(entry->key);
170
171 key.lower = (GBT_NUMKEY *) &kkk->lower;
172 key.upper = (GBT_NUMKEY *) &kkk->upper;
173
175 &tinfo, fcinfo->flinfo));
176}
177
178
179Datum
181{
183 void *out = palloc(sizeof(float8KEY));
184
185 *(int *) PG_GETARG_POINTER(1) = sizeof(float8KEY);
186 PG_RETURN_POINTER(gbt_num_union(out, entryvec, &tinfo, fcinfo->flinfo));
187}
188
189
190Datum
192{
193 float8KEY *origentry = (float8KEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
195 float *result = (float *) PG_GETARG_POINTER(2);
196
197 penalty_num(result, origentry->lower, origentry->upper, newentry->lower, newentry->upper);
198
199 PG_RETURN_POINTER(result);
200}
201
202Datum
204{
207 &tinfo, fcinfo->flinfo));
208}
209
210Datum
212{
215 bool *result = (bool *) PG_GETARG_POINTER(2);
216
217 *result = gbt_num_same((void *) b1, (void *) b2, &tinfo, fcinfo->flinfo);
218 PG_RETURN_POINTER(result);
219}
Datum gbt_float8_same(PG_FUNCTION_ARGS)
Definition: btree_float8.c:211
struct float8key float8KEY
static bool gbt_float8eq(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_float8.c:40
Datum gbt_float8_picksplit(PG_FUNCTION_ARGS)
Definition: btree_float8.c:203
PG_FUNCTION_INFO_V1(gbt_float8_compress)
static bool gbt_float8gt(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_float8.c:30
static float8 gbt_float8_dist(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_float8.c:73
static const gbtree_ninfo tinfo
Definition: btree_float8.c:86
Datum gbt_float8_compress(PG_FUNCTION_ARGS)
Definition: btree_float8.c:122
Datum gbt_float8_fetch(PG_FUNCTION_ARGS)
Definition: btree_float8.c:130
Datum gbt_float8_distance(PG_FUNCTION_ARGS)
Definition: btree_float8.c:162
static bool gbt_float8le(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_float8.c:45
static bool gbt_float8ge(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_float8.c:35
static int gbt_float8key_cmp(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_float8.c:56
Datum float8_dist(PG_FUNCTION_ARGS)
Definition: btree_float8.c:103
Datum gbt_float8_union(PG_FUNCTION_ARGS)
Definition: btree_float8.c:180
static bool gbt_float8lt(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_float8.c:50
Datum gbt_float8_penalty(PG_FUNCTION_ARGS)
Definition: btree_float8.c:191
Datum gbt_float8_consistent(PG_FUNCTION_ARGS)
Definition: btree_float8.c:138
@ gbt_t_float8
Definition: btree_gist.h:21
GISTENTRY * gbt_num_compress(GISTENTRY *entry, const gbtree_ninfo *tinfo)
float8 gbt_num_distance(const GBT_NUMKEY_R *key, const void *query, bool is_leaf, const gbtree_ninfo *tinfo, FmgrInfo *flinfo)
bool gbt_num_consistent(const GBT_NUMKEY_R *key, const void *query, const StrategyNumber *strategy, bool is_leaf, const gbtree_ninfo *tinfo, FmgrInfo *flinfo)
bool gbt_num_same(const GBT_NUMKEY *a, const GBT_NUMKEY *b, const gbtree_ninfo *tinfo, FmgrInfo *flinfo)
GISTENTRY * gbt_num_fetch(GISTENTRY *entry, const gbtree_ninfo *tinfo)
GIST_SPLITVEC * gbt_num_picksplit(const GistEntryVector *entryvec, GIST_SPLITVEC *v, const gbtree_ninfo *tinfo, FmgrInfo *flinfo)
void * gbt_num_union(GBT_NUMKEY *out, const GistEntryVector *entryvec, const gbtree_ninfo *tinfo, FmgrInfo *flinfo)
#define penalty_num(result, olower, oupper, nlower, nupper)
char GBT_NUMKEY
double float8
Definition: c.h:587
#define unlikely(x)
Definition: c.h:333
pg_noinline void float_overflow_error(void)
Definition: float.c:86
#define PG_GETARG_FLOAT8(n)
Definition: fmgr.h:282
#define PG_RETURN_FLOAT8(x)
Definition: fmgr.h:367
#define PG_GETARG_POINTER(n)
Definition: fmgr.h:276
#define PG_GETARG_UINT16(n)
Definition: fmgr.h:272
#define PG_RETURN_POINTER(x)
Definition: fmgr.h:361
#define PG_FUNCTION_ARGS
Definition: fmgr.h:193
#define PG_RETURN_BOOL(x)
Definition: fmgr.h:359
#define GIST_LEAF(entry)
Definition: gist.h:171
int b
Definition: isn.c:69
int a
Definition: isn.c:68
void * palloc(Size size)
Definition: mcxt.c:1317
uintptr_t Datum
Definition: postgres.h:69
static Pointer DatumGetPointer(Datum X)
Definition: postgres.h:317
uint16 StrategyNumber
Definition: stratnum.h:22
Definition: fmgr.h:57
Datum key
Definition: gist.h:161
float8 upper
Definition: btree_float8.c:13
float8 lower
Definition: btree_float8.c:12