PostgreSQL Source Code  git master
btree_int8.c
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1 /*
2  * contrib/btree_gist/btree_int8.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 int64key
11 {
12  int64 lower;
13  int64 upper;
14 } int64KEY;
15 
16 /*
17 ** int64 ops
18 */
27 
28 
29 static bool
30 gbt_int8gt(const void *a, const void *b, FmgrInfo *flinfo)
31 {
32  return (*((const int64 *) a) > *((const int64 *) b));
33 }
34 static bool
35 gbt_int8ge(const void *a, const void *b, FmgrInfo *flinfo)
36 {
37  return (*((const int64 *) a) >= *((const int64 *) b));
38 }
39 static bool
40 gbt_int8eq(const void *a, const void *b, FmgrInfo *flinfo)
41 {
42  return (*((const int64 *) a) == *((const int64 *) b));
43 }
44 static bool
45 gbt_int8le(const void *a, const void *b, FmgrInfo *flinfo)
46 {
47  return (*((const int64 *) a) <= *((const int64 *) b));
48 }
49 static bool
50 gbt_int8lt(const void *a, const void *b, FmgrInfo *flinfo)
51 {
52  return (*((const int64 *) a) < *((const int64 *) b));
53 }
54 
55 static int
56 gbt_int8key_cmp(const void *a, const void *b, FmgrInfo *flinfo)
57 {
58  int64KEY *ia = (int64KEY *) (((const Nsrt *) a)->t);
59  int64KEY *ib = (int64KEY *) (((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 
72 static float8
73 gbt_int8_dist(const void *a, const void *b, FmgrInfo *flinfo)
74 {
75  return GET_FLOAT_DISTANCE(int64, a, b);
76 }
77 
78 
79 static const gbtree_ninfo tinfo =
80 {
81  gbt_t_int8,
82  sizeof(int64),
83  16, /* sizeof(gbtreekey16) */
84  gbt_int8gt,
85  gbt_int8ge,
86  gbt_int8eq,
87  gbt_int8le,
88  gbt_int8lt,
91 };
92 
93 
95 Datum
97 {
98  int64 a = PG_GETARG_INT64(0);
99  int64 b = PG_GETARG_INT64(1);
100  int64 r;
101  int64 ra;
102 
103  if (pg_sub_s64_overflow(a, b, &r) ||
104  r == PG_INT64_MIN)
105  ereport(ERROR,
106  (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
107  errmsg("bigint out of range")));
108 
109  ra = Abs(r);
110 
111  PG_RETURN_INT64(ra);
112 }
113 
114 
115 /**************************************************
116  * int64 ops
117  **************************************************/
118 
119 
120 Datum
122 {
123  GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
124 
125  PG_RETURN_POINTER(gbt_num_compress(entry, &tinfo));
126 }
127 
128 Datum
130 {
131  GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
132 
133  PG_RETURN_POINTER(gbt_num_fetch(entry, &tinfo));
134 }
135 
136 Datum
138 {
139  GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
140  int64 query = PG_GETARG_INT64(1);
142 
143  /* Oid subtype = PG_GETARG_OID(3); */
144  bool *recheck = (bool *) PG_GETARG_POINTER(4);
145  int64KEY *kkk = (int64KEY *) DatumGetPointer(entry->key);
147 
148  /* All cases served by this function are exact */
149  *recheck = false;
150 
151  key.lower = (GBT_NUMKEY *) &kkk->lower;
152  key.upper = (GBT_NUMKEY *) &kkk->upper;
153 
154  PG_RETURN_BOOL(gbt_num_consistent(&key, (void *) &query, &strategy,
155  GIST_LEAF(entry), &tinfo, fcinfo->flinfo));
156 }
157 
158 
159 Datum
161 {
162  GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
163  int64 query = PG_GETARG_INT64(1);
164 
165  /* Oid subtype = PG_GETARG_OID(3); */
166  int64KEY *kkk = (int64KEY *) DatumGetPointer(entry->key);
168 
169  key.lower = (GBT_NUMKEY *) &kkk->lower;
170  key.upper = (GBT_NUMKEY *) &kkk->upper;
171 
172  PG_RETURN_FLOAT8(gbt_num_distance(&key, (void *) &query, GIST_LEAF(entry),
173  &tinfo, fcinfo->flinfo));
174 }
175 
176 
177 Datum
179 {
181  void *out = palloc(sizeof(int64KEY));
182 
183  *(int *) PG_GETARG_POINTER(1) = sizeof(int64KEY);
184  PG_RETURN_POINTER(gbt_num_union((void *) out, entryvec, &tinfo, fcinfo->flinfo));
185 }
186 
187 
188 Datum
190 {
191  int64KEY *origentry = (int64KEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
192  int64KEY *newentry = (int64KEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
193  float *result = (float *) PG_GETARG_POINTER(2);
194 
195  penalty_num(result, origentry->lower, origentry->upper, newentry->lower, newentry->upper);
196 
197  PG_RETURN_POINTER(result);
198 }
199 
200 Datum
202 {
205  &tinfo, fcinfo->flinfo));
206 }
207 
208 Datum
210 {
211  int64KEY *b1 = (int64KEY *) PG_GETARG_POINTER(0);
212  int64KEY *b2 = (int64KEY *) PG_GETARG_POINTER(1);
213  bool *result = (bool *) PG_GETARG_POINTER(2);
214 
215  *result = gbt_num_same((void *) b1, (void *) b2, &tinfo, fcinfo->flinfo);
216  PG_RETURN_POINTER(result);
217 }
#define GIST_LEAF(entry)
Definition: gist.h:162
#define PG_RETURN_POINTER(x)
Definition: fmgr.h:360
bool gbt_num_same(const GBT_NUMKEY *a, const GBT_NUMKEY *b, const gbtree_ninfo *tinfo, FmgrInfo *flinfo)
Definition: fmgr.h:56
static bool gbt_int8eq(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_int8.c:40
const GBT_NUMKEY * lower
float8 gbt_num_distance(const GBT_NUMKEY_R *key, const void *query, bool is_leaf, const gbtree_ninfo *tinfo, FmgrInfo *flinfo)
static bool pg_sub_s64_overflow(int64 a, int64 b, int64 *result)
Definition: int.h:188
#define PG_RETURN_INT64(x)
Definition: fmgr.h:366
GISTENTRY * gbt_num_fetch(GISTENTRY *entry, const gbtree_ninfo *tinfo)
Datum gbt_int8_same(PG_FUNCTION_ARGS)
Definition: btree_int8.c:209
#define PG_RETURN_FLOAT8(x)
Definition: fmgr.h:365
uint16 StrategyNumber
Definition: stratnum.h:22
int errcode(int sqlerrcode)
Definition: elog.c:610
static bool gbt_int8ge(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_int8.c:35
Datum gbt_int8_union(PG_FUNCTION_ARGS)
Definition: btree_int8.c:178
const GBT_NUMKEY * upper
#define PG_GETARG_POINTER(n)
Definition: fmgr.h:276
bool gbt_num_consistent(const GBT_NUMKEY_R *key, const void *query, const StrategyNumber *strategy, bool is_leaf, const gbtree_ninfo *tinfo, FmgrInfo *flinfo)
Datum gbt_int8_compress(PG_FUNCTION_ARGS)
Definition: btree_int8.c:121
static int gbt_int8key_cmp(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_int8.c:56
#define Abs(x)
Definition: c.h:933
GISTENTRY * gbt_num_compress(GISTENTRY *entry, const gbtree_ninfo *tinfo)
#define ERROR
Definition: elog.h:43
double float8
Definition: c.h:498
static const gbtree_ninfo tinfo
Definition: btree_int8.c:79
#define penalty_num(result, olower, oupper, nlower, nupper)
static float8 gbt_int8_dist(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_int8.c:73
Datum key
Definition: gist.h:152
Datum gbt_int8_picksplit(PG_FUNCTION_ARGS)
Definition: btree_int8.c:201
int64 upper
Definition: btree_int8.c:13
char GBT_NUMKEY
#define PG_INT64_MIN
Definition: c.h:459
static bool gbt_int8lt(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_int8.c:50
static bool gbt_int8gt(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_int8.c:30
static bool gbt_int8le(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_int8.c:45
Datum gbt_int8_distance(PG_FUNCTION_ARGS)
Definition: btree_int8.c:160
#define PG_RETURN_BOOL(x)
Definition: fmgr.h:358
uintptr_t Datum
Definition: postgres.h:367
#define ereport(elevel,...)
Definition: elog.h:144
#define GET_FLOAT_DISTANCE(t, arg1, arg2)
GIST_SPLITVEC * gbt_num_picksplit(const GistEntryVector *entryvec, GIST_SPLITVEC *v, const gbtree_ninfo *tinfo, FmgrInfo *flinfo)
#define PG_GETARG_UINT16(n)
Definition: fmgr.h:272
#define DatumGetPointer(X)
Definition: postgres.h:549
int64 lower
Definition: btree_int8.c:12
PG_FUNCTION_INFO_V1(gbt_int8_compress)
void * palloc(Size size)
Definition: mcxt.c:950
int errmsg(const char *fmt,...)
Definition: elog.c:824
Datum gbt_int8_fetch(PG_FUNCTION_ARGS)
Definition: btree_int8.c:129
#define PG_FUNCTION_ARGS
Definition: fmgr.h:193
#define PG_GETARG_INT64(n)
Definition: fmgr.h:282
struct int64key int64KEY
Datum gbt_int8_consistent(PG_FUNCTION_ARGS)
Definition: btree_int8.c:137
Datum int8_dist(PG_FUNCTION_ARGS)
Definition: btree_int8.c:96
Datum gbt_int8_penalty(PG_FUNCTION_ARGS)
Definition: btree_int8.c:189
void * gbt_num_union(GBT_NUMKEY *out, const GistEntryVector *entryvec, const gbtree_ninfo *tinfo, FmgrInfo *flinfo)