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 
9 typedef struct int64key
10 {
11  int64 lower;
12  int64 upper;
13 } int64KEY;
14 
15 /*
16 ** int64 ops
17 */
26 
27 
28 static bool
29 gbt_int8gt(const void *a, const void *b, FmgrInfo *flinfo)
30 {
31  return (*((const int64 *) a) > *((const int64 *) b));
32 }
33 static bool
34 gbt_int8ge(const void *a, const void *b, FmgrInfo *flinfo)
35 {
36  return (*((const int64 *) a) >= *((const int64 *) b));
37 }
38 static bool
39 gbt_int8eq(const void *a, const void *b, FmgrInfo *flinfo)
40 {
41  return (*((const int64 *) a) == *((const int64 *) b));
42 }
43 static bool
44 gbt_int8le(const void *a, const void *b, FmgrInfo *flinfo)
45 {
46  return (*((const int64 *) a) <= *((const int64 *) b));
47 }
48 static bool
49 gbt_int8lt(const void *a, const void *b, FmgrInfo *flinfo)
50 {
51  return (*((const int64 *) a) < *((const int64 *) b));
52 }
53 
54 static int
55 gbt_int8key_cmp(const void *a, const void *b, FmgrInfo *flinfo)
56 {
57  int64KEY *ia = (int64KEY *) (((const Nsrt *) a)->t);
58  int64KEY *ib = (int64KEY *) (((const Nsrt *) b)->t);
59 
60  if (ia->lower == ib->lower)
61  {
62  if (ia->upper == ib->upper)
63  return 0;
64 
65  return (ia->upper > ib->upper) ? 1 : -1;
66  }
67 
68  return (ia->lower > ib->lower) ? 1 : -1;
69 }
70 
71 static float8
72 gbt_int8_dist(const void *a, const void *b, FmgrInfo *flinfo)
73 {
74  return GET_FLOAT_DISTANCE(int64, a, b);
75 }
76 
77 
78 static const gbtree_ninfo tinfo =
79 {
80  gbt_t_int8,
81  sizeof(int64),
82  16, /* sizeof(gbtreekey16) */
83  gbt_int8gt,
84  gbt_int8ge,
85  gbt_int8eq,
86  gbt_int8le,
87  gbt_int8lt,
90 };
91 
92 
94 Datum
96 {
97  int64 a = PG_GETARG_INT64(0);
98  int64 b = PG_GETARG_INT64(1);
99  int64 r;
100  int64 ra;
101 
102  r = a - b;
103  ra = Abs(r);
104 
105  /* Overflow check. */
106  if (ra < 0 || (!SAMESIGN(a, b) && !SAMESIGN(r, a)))
107  ereport(ERROR,
108  (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
109  errmsg("bigint out of range")));
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);
146  GBT_NUMKEY_R 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 
155  gbt_num_consistent(&key, (void *) &query, &strategy, GIST_LEAF(entry), &tinfo, fcinfo->flinfo)
156  );
157 }
158 
159 
160 Datum
162 {
163  GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
164  int64 query = PG_GETARG_INT64(1);
165 
166  /* Oid subtype = PG_GETARG_OID(3); */
167  int64KEY *kkk = (int64KEY *) DatumGetPointer(entry->key);
168  GBT_NUMKEY_R key;
169 
170  key.lower = (GBT_NUMKEY *) &kkk->lower;
171  key.upper = (GBT_NUMKEY *) &kkk->upper;
172 
174  gbt_num_distance(&key, (void *) &query, GIST_LEAF(entry), &tinfo, fcinfo->flinfo)
175  );
176 }
177 
178 
179 Datum
181 {
183  void *out = palloc(sizeof(int64KEY));
184 
185  *(int *) PG_GETARG_POINTER(1) = sizeof(int64KEY);
186  PG_RETURN_POINTER(gbt_num_union((void *) out, entryvec, &tinfo, fcinfo->flinfo));
187 }
188 
189 
190 Datum
192 {
193  int64KEY *origentry = (int64KEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
194  int64KEY *newentry = (int64KEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->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 
202 Datum
204 {
208  &tinfo, fcinfo->flinfo
209  ));
210 }
211 
212 Datum
214 {
215  int64KEY *b1 = (int64KEY *) PG_GETARG_POINTER(0);
216  int64KEY *b2 = (int64KEY *) PG_GETARG_POINTER(1);
217  bool *result = (bool *) PG_GETARG_POINTER(2);
218 
219  *result = gbt_num_same((void *) b1, (void *) b2, &tinfo, fcinfo->flinfo);
220  PG_RETURN_POINTER(result);
221 }
#define GIST_LEAF(entry)
Definition: gist.h:133
#define PG_RETURN_POINTER(x)
Definition: fmgr.h:321
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:39
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)
#define PG_RETURN_INT64(x)
Definition: fmgr.h:327
GISTENTRY * gbt_num_fetch(GISTENTRY *entry, const gbtree_ninfo *tinfo)
Datum gbt_int8_same(PG_FUNCTION_ARGS)
Definition: btree_int8.c:213
#define PG_RETURN_FLOAT8(x)
Definition: fmgr.h:326
uint16 StrategyNumber
Definition: stratnum.h:22
int errcode(int sqlerrcode)
Definition: elog.c:575
static bool gbt_int8ge(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_int8.c:34
Datum gbt_int8_union(PG_FUNCTION_ARGS)
Definition: btree_int8.c:180
const GBT_NUMKEY * upper
#define PG_GETARG_POINTER(n)
Definition: fmgr.h:241
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:55
#define Abs(x)
Definition: c.h:808
GISTENTRY * gbt_num_compress(GISTENTRY *entry, const gbtree_ninfo *tinfo)
#define ERROR
Definition: elog.h:43
double float8
Definition: c.h:429
static const gbtree_ninfo tinfo
Definition: btree_int8.c:78
#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:72
Datum key
Definition: gist.h:123
Datum gbt_int8_picksplit(PG_FUNCTION_ARGS)
Definition: btree_int8.c:203
int64 upper
Definition: btree_int8.c:12
char GBT_NUMKEY
#define ereport(elevel, rest)
Definition: elog.h:122
static bool gbt_int8lt(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_int8.c:49
static bool gbt_int8gt(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_int8.c:29
static bool gbt_int8le(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_int8.c:44
#define SAMESIGN(a, b)
Datum gbt_int8_distance(PG_FUNCTION_ARGS)
Definition: btree_int8.c:161
#define PG_RETURN_BOOL(x)
Definition: fmgr.h:319
uintptr_t Datum
Definition: postgres.h:372
#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:237
#define DatumGetPointer(X)
Definition: postgres.h:555
int64 lower
Definition: btree_int8.c:11
PG_FUNCTION_INFO_V1(gbt_int8_compress)
void * palloc(Size size)
Definition: mcxt.c:848
int errmsg(const char *fmt,...)
Definition: elog.c:797
Datum gbt_int8_fetch(PG_FUNCTION_ARGS)
Definition: btree_int8.c:129
#define PG_FUNCTION_ARGS
Definition: fmgr.h:158
#define PG_GETARG_INT64(n)
Definition: fmgr.h:247
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:95
Datum gbt_int8_penalty(PG_FUNCTION_ARGS)
Definition: btree_int8.c:191
void * gbt_num_union(GBT_NUMKEY *out, const GistEntryVector *entryvec, const gbtree_ninfo *tinfo, FmgrInfo *flinfo)