PostgreSQL Source Code  git master
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros
btree_int4.c
Go to the documentation of this file.
1 /*
2  * contrib/btree_gist/btree_int4.c
3  */
4 #include "postgres.h"
5 
6 #include "btree_gist.h"
7 #include "btree_utils_num.h"
8 
9 typedef struct int32key
10 {
13 } int32KEY;
14 
15 /*
16 ** int32 ops
17 */
26 
27 
28 static bool
29 gbt_int4gt(const void *a, const void *b, FmgrInfo *flinfo)
30 {
31  return (*((const int32 *) a) > *((const int32 *) b));
32 }
33 static bool
34 gbt_int4ge(const void *a, const void *b, FmgrInfo *flinfo)
35 {
36  return (*((const int32 *) a) >= *((const int32 *) b));
37 }
38 static bool
39 gbt_int4eq(const void *a, const void *b, FmgrInfo *flinfo)
40 {
41  return (*((const int32 *) a) == *((const int32 *) b));
42 }
43 static bool
44 gbt_int4le(const void *a, const void *b, FmgrInfo *flinfo)
45 {
46  return (*((const int32 *) a) <= *((const int32 *) b));
47 }
48 static bool
49 gbt_int4lt(const void *a, const void *b, FmgrInfo *flinfo)
50 {
51  return (*((const int32 *) a) < *((const int32 *) b));
52 }
53 
54 static int
55 gbt_int4key_cmp(const void *a, const void *b, FmgrInfo *flinfo)
56 {
57  int32KEY *ia = (int32KEY *) (((const Nsrt *) a)->t);
58  int32KEY *ib = (int32KEY *) (((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_int4_dist(const void *a, const void *b, FmgrInfo *flinfo)
73 {
74  return GET_FLOAT_DISTANCE(int32, a, b);
75 }
76 
77 
78 static const gbtree_ninfo tinfo =
79 {
80  gbt_t_int4,
81  sizeof(int32),
82  8, /* sizeof(gbtreekey8) */
83  gbt_int4gt,
84  gbt_int4ge,
85  gbt_int4eq,
86  gbt_int4le,
87  gbt_int4lt,
90 };
91 
92 
94 Datum
96 {
97  int32 a = PG_GETARG_INT32(0);
98  int32 b = PG_GETARG_INT32(1);
99  int32 r;
100  int32 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("integer out of range")));
110 
111  PG_RETURN_INT32(ra);
112 }
113 
114 
115 /**************************************************
116  * int32 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  int32 query = PG_GETARG_INT32(1);
142 
143  /* Oid subtype = PG_GETARG_OID(3); */
144  bool *recheck = (bool *) PG_GETARG_POINTER(4);
145  int32KEY *kkk = (int32KEY *) 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  int32 query = PG_GETARG_INT32(1);
165 
166  /* Oid subtype = PG_GETARG_OID(3); */
167  int32KEY *kkk = (int32KEY *) 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(int32KEY));
184 
185  *(int *) PG_GETARG_POINTER(1) = sizeof(int32KEY);
186  PG_RETURN_POINTER(gbt_num_union((void *) out, entryvec, &tinfo, fcinfo->flinfo));
187 }
188 
189 
190 Datum
192 {
193  int32KEY *origentry = (int32KEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
194  int32KEY *newentry = (int32KEY *) 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  int32KEY *b1 = (int32KEY *) PG_GETARG_POINTER(0);
216  int32KEY *b2 = (int32KEY *) 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:313
bool gbt_num_same(const GBT_NUMKEY *a, const GBT_NUMKEY *b, const gbtree_ninfo *tinfo, FmgrInfo *flinfo)
#define PG_GETARG_INT32(n)
Definition: fmgr.h:226
Definition: fmgr.h:53
Datum gbt_int4_penalty(PG_FUNCTION_ARGS)
Definition: btree_int4.c:191
Datum gbt_int4_fetch(PG_FUNCTION_ARGS)
Definition: btree_int4.c:129
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)
GISTENTRY * gbt_num_fetch(GISTENTRY *entry, const gbtree_ninfo *tinfo)
#define PG_RETURN_FLOAT8(x)
Definition: fmgr.h:318
Datum gbt_int4_picksplit(PG_FUNCTION_ARGS)
Definition: btree_int4.c:203
#define PG_RETURN_INT32(x)
Definition: fmgr.h:306
uint16 StrategyNumber
Definition: stratnum.h:22
int errcode(int sqlerrcode)
Definition: elog.c:575
const GBT_NUMKEY * upper
#define PG_GETARG_POINTER(n)
Definition: fmgr.h:233
bool gbt_num_consistent(const GBT_NUMKEY_R *key, const void *query, const StrategyNumber *strategy, bool is_leaf, const gbtree_ninfo *tinfo, FmgrInfo *flinfo)
struct int32key int32KEY
Datum gbt_int4_consistent(PG_FUNCTION_ARGS)
Definition: btree_int4.c:137
signed int int32
Definition: c.h:256
#define Abs(x)
Definition: c.h:812
GISTENTRY * gbt_num_compress(GISTENTRY *entry, const gbtree_ninfo *tinfo)
static int gbt_int4key_cmp(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_int4.c:55
Datum gbt_int4_compress(PG_FUNCTION_ARGS)
Definition: btree_int4.c:121
Datum gbt_int4_union(PG_FUNCTION_ARGS)
Definition: btree_int4.c:180
static float8 gbt_int4_dist(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_int4.c:72
#define ERROR
Definition: elog.h:43
double float8
Definition: c.h:381
#define penalty_num(result, olower, oupper, nlower, nupper)
static bool gbt_int4lt(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_int4.c:49
static bool gbt_int4le(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_int4.c:44
PG_FUNCTION_INFO_V1(gbt_int4_compress)
Datum key
Definition: gist.h:123
char GBT_NUMKEY
int32 lower
Definition: btree_int4.c:11
static bool gbt_int4gt(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_int4.c:29
#define ereport(elevel, rest)
Definition: elog.h:122
#define SAMESIGN(a, b)
static const gbtree_ninfo tinfo
Definition: btree_int4.c:78
Datum gbt_int4_distance(PG_FUNCTION_ARGS)
Definition: btree_int4.c:161
#define PG_RETURN_BOOL(x)
Definition: fmgr.h:311
uintptr_t Datum
Definition: postgres.h:372
static bool gbt_int4ge(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_int4.c:34
#define GET_FLOAT_DISTANCE(t, arg1, arg2)
static bool gbt_int4eq(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_int4.c:39
Datum gbt_int4_same(PG_FUNCTION_ARGS)
Definition: btree_int4.c:213
GIST_SPLITVEC * gbt_num_picksplit(const GistEntryVector *entryvec, GIST_SPLITVEC *v, const gbtree_ninfo *tinfo, FmgrInfo *flinfo)
int32 upper
Definition: btree_int4.c:12
#define PG_GETARG_UINT16(n)
Definition: fmgr.h:229
#define DatumGetPointer(X)
Definition: postgres.h:555
void * palloc(Size size)
Definition: mcxt.c:849
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define PG_FUNCTION_ARGS
Definition: fmgr.h:150
Datum int4_dist(PG_FUNCTION_ARGS)
Definition: btree_int4.c:95
void * gbt_num_union(GBT_NUMKEY *out, const GistEntryVector *entryvec, const gbtree_ninfo *tinfo, FmgrInfo *flinfo)