TLA Line data Source code
1 : /*
2 : * contrib/btree_gist/btree_cash.c
3 : */
4 : #include "postgres.h"
5 :
6 : #include "btree_gist.h"
7 : #include "btree_utils_num.h"
8 : #include "common/int.h"
9 : #include "utils/cash.h"
10 :
11 : typedef struct
12 : {
13 : Cash lower;
14 : Cash upper;
15 : } cashKEY;
16 :
17 : /*
18 : ** Cash ops
19 : */
20 CBC 2 : PG_FUNCTION_INFO_V1(gbt_cash_compress);
21 2 : PG_FUNCTION_INFO_V1(gbt_cash_fetch);
22 2 : PG_FUNCTION_INFO_V1(gbt_cash_union);
23 2 : PG_FUNCTION_INFO_V1(gbt_cash_picksplit);
24 2 : PG_FUNCTION_INFO_V1(gbt_cash_consistent);
25 2 : PG_FUNCTION_INFO_V1(gbt_cash_distance);
26 2 : PG_FUNCTION_INFO_V1(gbt_cash_penalty);
27 2 : PG_FUNCTION_INFO_V1(gbt_cash_same);
28 :
29 : static bool
30 1727 : gbt_cashgt(const void *a, const void *b, FmgrInfo *flinfo)
31 : {
32 1727 : return (*((const Cash *) a) > *((const Cash *) b));
33 : }
34 : static bool
35 441 : gbt_cashge(const void *a, const void *b, FmgrInfo *flinfo)
36 : {
37 441 : return (*((const Cash *) a) >= *((const Cash *) b));
38 : }
39 : static bool
40 740 : gbt_casheq(const void *a, const void *b, FmgrInfo *flinfo)
41 : {
42 740 : return (*((const Cash *) a) == *((const Cash *) b));
43 : }
44 : static bool
45 443 : gbt_cashle(const void *a, const void *b, FmgrInfo *flinfo)
46 : {
47 443 : return (*((const Cash *) a) <= *((const Cash *) b));
48 : }
49 : static bool
50 1603 : gbt_cashlt(const void *a, const void *b, FmgrInfo *flinfo)
51 : {
52 1603 : return (*((const Cash *) a) < *((const Cash *) b));
53 : }
54 :
55 : static int
56 6905 : gbt_cashkey_cmp(const void *a, const void *b, FmgrInfo *flinfo)
57 : {
58 6905 : cashKEY *ia = (cashKEY *) (((const Nsrt *) a)->t);
59 6905 : cashKEY *ib = (cashKEY *) (((const Nsrt *) b)->t);
60 :
61 6905 : if (ia->lower == ib->lower)
62 : {
63 UBC 0 : if (ia->upper == ib->upper)
64 0 : return 0;
65 :
66 0 : return (ia->upper > ib->upper) ? 1 : -1;
67 : }
68 :
69 CBC 6905 : return (ia->lower > ib->lower) ? 1 : -1;
70 : }
71 :
72 : static float8
73 146 : gbt_cash_dist(const void *a, const void *b, FmgrInfo *flinfo)
74 : {
75 146 : return GET_FLOAT_DISTANCE(Cash, a, b);
76 : }
77 :
78 :
79 : static const gbtree_ninfo tinfo =
80 : {
81 : gbt_t_cash,
82 : sizeof(Cash),
83 : 16, /* sizeof(gbtreekey16) */
84 : gbt_cashgt,
85 : gbt_cashge,
86 : gbt_casheq,
87 : gbt_cashle,
88 : gbt_cashlt,
89 : gbt_cashkey_cmp,
90 : gbt_cash_dist
91 : };
92 :
93 :
94 2 : PG_FUNCTION_INFO_V1(cash_dist);
95 : Datum
96 546 : cash_dist(PG_FUNCTION_ARGS)
97 : {
98 546 : Cash a = PG_GETARG_CASH(0);
99 546 : Cash b = PG_GETARG_CASH(1);
100 : Cash r;
101 : Cash ra;
102 :
103 546 : if (pg_sub_s64_overflow(a, b, &r) ||
104 546 : r == PG_INT64_MIN)
105 UBC 0 : ereport(ERROR,
106 : (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
107 : errmsg("money out of range")));
108 :
109 GNC 546 : ra = i64abs(r);
110 :
111 CBC 546 : PG_RETURN_CASH(ra);
112 : }
113 :
114 : /**************************************************
115 : * Cash ops
116 : **************************************************/
117 :
118 :
119 : Datum
120 552 : gbt_cash_compress(PG_FUNCTION_ARGS)
121 : {
122 552 : GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
123 :
124 552 : PG_RETURN_POINTER(gbt_num_compress(entry, &tinfo));
125 : }
126 :
127 : Datum
128 143 : gbt_cash_fetch(PG_FUNCTION_ARGS)
129 : {
130 143 : GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
131 :
132 143 : PG_RETURN_POINTER(gbt_num_fetch(entry, &tinfo));
133 : }
134 :
135 : Datum
136 1535 : gbt_cash_consistent(PG_FUNCTION_ARGS)
137 : {
138 1535 : GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
139 1535 : Cash query = PG_GETARG_CASH(1);
140 1535 : StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
141 :
142 : /* Oid subtype = PG_GETARG_OID(3); */
143 1535 : bool *recheck = (bool *) PG_GETARG_POINTER(4);
144 1535 : cashKEY *kkk = (cashKEY *) DatumGetPointer(entry->key);
145 : GBT_NUMKEY_R key;
146 :
147 : /* All cases served by this function are exact */
148 1535 : *recheck = false;
149 :
150 1535 : key.lower = (GBT_NUMKEY *) &kkk->lower;
151 1535 : key.upper = (GBT_NUMKEY *) &kkk->upper;
152 :
153 1535 : PG_RETURN_BOOL(gbt_num_consistent(&key, (void *) &query, &strategy,
154 : GIST_LEAF(entry), &tinfo,
155 : fcinfo->flinfo));
156 : }
157 :
158 :
159 : Datum
160 147 : gbt_cash_distance(PG_FUNCTION_ARGS)
161 : {
162 147 : GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
163 147 : Cash query = PG_GETARG_CASH(1);
164 :
165 : /* Oid subtype = PG_GETARG_OID(3); */
166 147 : cashKEY *kkk = (cashKEY *) DatumGetPointer(entry->key);
167 : GBT_NUMKEY_R key;
168 :
169 147 : key.lower = (GBT_NUMKEY *) &kkk->lower;
170 147 : key.upper = (GBT_NUMKEY *) &kkk->upper;
171 :
172 147 : PG_RETURN_FLOAT8(gbt_num_distance(&key, (void *) &query, GIST_LEAF(entry),
173 : &tinfo, fcinfo->flinfo));
174 : }
175 :
176 :
177 : Datum
178 300 : gbt_cash_union(PG_FUNCTION_ARGS)
179 : {
180 300 : GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
181 300 : void *out = palloc(sizeof(cashKEY));
182 :
183 300 : *(int *) PG_GETARG_POINTER(1) = sizeof(cashKEY);
184 300 : PG_RETURN_POINTER(gbt_num_union((void *) out, entryvec, &tinfo, fcinfo->flinfo));
185 : }
186 :
187 :
188 : Datum
189 539 : gbt_cash_penalty(PG_FUNCTION_ARGS)
190 : {
191 539 : cashKEY *origentry = (cashKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
192 539 : cashKEY *newentry = (cashKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
193 539 : float *result = (float *) PG_GETARG_POINTER(2);
194 :
195 539 : penalty_num(result, origentry->lower, origentry->upper, newentry->lower, newentry->upper);
196 :
197 539 : PG_RETURN_POINTER(result);
198 : }
199 :
200 : Datum
201 3 : gbt_cash_picksplit(PG_FUNCTION_ARGS)
202 : {
203 3 : 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
209 299 : gbt_cash_same(PG_FUNCTION_ARGS)
210 : {
211 299 : cashKEY *b1 = (cashKEY *) PG_GETARG_POINTER(0);
212 299 : cashKEY *b2 = (cashKEY *) PG_GETARG_POINTER(1);
213 299 : bool *result = (bool *) PG_GETARG_POINTER(2);
214 :
215 299 : *result = gbt_num_same((void *) b1, (void *) b2, &tinfo, fcinfo->flinfo);
216 299 : PG_RETURN_POINTER(result);
217 : }
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