Line data Source code
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 : #include "common/int.h"
9 :
10 : typedef struct int32key
11 : {
12 : int32 lower;
13 : int32 upper;
14 : } int32KEY;
15 :
16 : /*
17 : ** int32 ops
18 : */
19 10 : PG_FUNCTION_INFO_V1(gbt_int4_compress);
20 10 : PG_FUNCTION_INFO_V1(gbt_int4_fetch);
21 10 : PG_FUNCTION_INFO_V1(gbt_int4_union);
22 10 : PG_FUNCTION_INFO_V1(gbt_int4_picksplit);
23 10 : PG_FUNCTION_INFO_V1(gbt_int4_consistent);
24 10 : PG_FUNCTION_INFO_V1(gbt_int4_distance);
25 10 : PG_FUNCTION_INFO_V1(gbt_int4_penalty);
26 10 : PG_FUNCTION_INFO_V1(gbt_int4_same);
27 :
28 :
29 : static bool
30 2912 : gbt_int4gt(const void *a, const void *b, FmgrInfo *flinfo)
31 : {
32 2912 : return (*((const int32 *) a) > *((const int32 *) b));
33 : }
34 : static bool
35 1180 : gbt_int4ge(const void *a, const void *b, FmgrInfo *flinfo)
36 : {
37 1180 : return (*((const int32 *) a) >= *((const int32 *) b));
38 : }
39 : static bool
40 1616 : gbt_int4eq(const void *a, const void *b, FmgrInfo *flinfo)
41 : {
42 1616 : return (*((const int32 *) a) == *((const int32 *) b));
43 : }
44 : static bool
45 1168 : gbt_int4le(const void *a, const void *b, FmgrInfo *flinfo)
46 : {
47 1168 : return (*((const int32 *) a) <= *((const int32 *) b));
48 : }
49 : static bool
50 2394 : gbt_int4lt(const void *a, const void *b, FmgrInfo *flinfo)
51 : {
52 2394 : return (*((const int32 *) a) < *((const int32 *) b));
53 : }
54 :
55 : static int
56 6300 : gbt_int4key_cmp(const void *a, const void *b, FmgrInfo *flinfo)
57 : {
58 6300 : int32KEY *ia = (int32KEY *) (((const Nsrt *) a)->t);
59 6300 : int32KEY *ib = (int32KEY *) (((const Nsrt *) b)->t);
60 :
61 6300 : if (ia->lower == ib->lower)
62 : {
63 10 : if (ia->upper == ib->upper)
64 10 : return 0;
65 :
66 0 : return (ia->upper > ib->upper) ? 1 : -1;
67 : }
68 :
69 6290 : return (ia->lower > ib->lower) ? 1 : -1;
70 : }
71 :
72 : static float8
73 576 : gbt_int4_dist(const void *a, const void *b, FmgrInfo *flinfo)
74 : {
75 576 : return GET_FLOAT_DISTANCE(int32, a, b);
76 : }
77 :
78 :
79 : static const gbtree_ninfo tinfo =
80 : {
81 : gbt_t_int4,
82 : sizeof(int32),
83 : 8, /* sizeof(gbtreekey8) */
84 : gbt_int4gt,
85 : gbt_int4ge,
86 : gbt_int4eq,
87 : gbt_int4le,
88 : gbt_int4lt,
89 : gbt_int4key_cmp,
90 : gbt_int4_dist
91 : };
92 :
93 :
94 4 : PG_FUNCTION_INFO_V1(int4_dist);
95 : Datum
96 1098 : int4_dist(PG_FUNCTION_ARGS)
97 : {
98 1098 : int32 a = PG_GETARG_INT32(0);
99 1098 : int32 b = PG_GETARG_INT32(1);
100 : int32 r;
101 : int32 ra;
102 :
103 1098 : if (pg_sub_s32_overflow(a, b, &r) ||
104 1098 : r == PG_INT32_MIN)
105 0 : ereport(ERROR,
106 : (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
107 : errmsg("integer out of range")));
108 :
109 1098 : ra = abs(r);
110 :
111 1098 : PG_RETURN_INT32(ra);
112 : }
113 :
114 :
115 : /**************************************************
116 : * int32 ops
117 : **************************************************/
118 :
119 :
120 : Datum
121 1148 : gbt_int4_compress(PG_FUNCTION_ARGS)
122 : {
123 1148 : GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
124 :
125 1148 : PG_RETURN_POINTER(gbt_num_compress(entry, &tinfo));
126 : }
127 :
128 : Datum
129 574 : gbt_int4_fetch(PG_FUNCTION_ARGS)
130 : {
131 574 : GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
132 :
133 574 : PG_RETURN_POINTER(gbt_num_fetch(entry, &tinfo));
134 : }
135 :
136 : Datum
137 4096 : gbt_int4_consistent(PG_FUNCTION_ARGS)
138 : {
139 4096 : GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
140 4096 : int32 query = PG_GETARG_INT32(1);
141 4096 : StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
142 :
143 : /* Oid subtype = PG_GETARG_OID(3); */
144 4096 : bool *recheck = (bool *) PG_GETARG_POINTER(4);
145 4096 : int32KEY *kkk = (int32KEY *) DatumGetPointer(entry->key);
146 : GBT_NUMKEY_R key;
147 :
148 : /* All cases served by this function are exact */
149 4096 : *recheck = false;
150 :
151 4096 : key.lower = (GBT_NUMKEY *) &kkk->lower;
152 4096 : key.upper = (GBT_NUMKEY *) &kkk->upper;
153 :
154 4096 : PG_RETURN_BOOL(gbt_num_consistent(&key, (void *) &query, &strategy,
155 : GIST_LEAF(entry), &tinfo, fcinfo->flinfo));
156 : }
157 :
158 :
159 : Datum
160 578 : gbt_int4_distance(PG_FUNCTION_ARGS)
161 : {
162 578 : GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
163 578 : int32 query = PG_GETARG_INT32(1);
164 :
165 : /* Oid subtype = PG_GETARG_OID(3); */
166 578 : int32KEY *kkk = (int32KEY *) DatumGetPointer(entry->key);
167 : GBT_NUMKEY_R key;
168 :
169 578 : key.lower = (GBT_NUMKEY *) &kkk->lower;
170 578 : key.upper = (GBT_NUMKEY *) &kkk->upper;
171 :
172 578 : PG_RETURN_FLOAT8(gbt_num_distance(&key, (void *) &query, GIST_LEAF(entry),
173 : &tinfo, fcinfo->flinfo));
174 : }
175 :
176 :
177 : Datum
178 438 : gbt_int4_union(PG_FUNCTION_ARGS)
179 : {
180 438 : GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
181 438 : void *out = palloc(sizeof(int32KEY));
182 :
183 438 : *(int *) PG_GETARG_POINTER(1) = sizeof(int32KEY);
184 438 : PG_RETURN_POINTER(gbt_num_union((void *) out, entryvec, &tinfo, fcinfo->flinfo));
185 : }
186 :
187 :
188 : Datum
189 732 : gbt_int4_penalty(PG_FUNCTION_ARGS)
190 : {
191 732 : int32KEY *origentry = (int32KEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
192 732 : int32KEY *newentry = (int32KEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
193 732 : float *result = (float *) PG_GETARG_POINTER(2);
194 :
195 732 : penalty_num(result, origentry->lower, origentry->upper, newentry->lower, newentry->upper);
196 :
197 732 : PG_RETURN_POINTER(result);
198 : }
199 :
200 : Datum
201 2 : gbt_int4_picksplit(PG_FUNCTION_ARGS)
202 : {
203 2 : PG_RETURN_POINTER(gbt_num_picksplit((GistEntryVector *) PG_GETARG_POINTER(0),
204 : (GIST_SPLITVEC *) PG_GETARG_POINTER(1),
205 : &tinfo, fcinfo->flinfo));
206 : }
207 :
208 : Datum
209 436 : gbt_int4_same(PG_FUNCTION_ARGS)
210 : {
211 436 : int32KEY *b1 = (int32KEY *) PG_GETARG_POINTER(0);
212 436 : int32KEY *b2 = (int32KEY *) PG_GETARG_POINTER(1);
213 436 : bool *result = (bool *) PG_GETARG_POINTER(2);
214 :
215 436 : *result = gbt_num_same((void *) b1, (void *) b2, &tinfo, fcinfo->flinfo);
216 436 : PG_RETURN_POINTER(result);
217 : }
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