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btree_cash.c
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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 "utils/cash.h"
9 
10 typedef struct
11 {
14 } cashKEY;
15 
16 /*
17 ** Cash ops
18 */
27 
28 static bool
29 gbt_cashgt(const void *a, const void *b, FmgrInfo *flinfo)
30 {
31  return (*((const Cash *) a) > *((const Cash *) b));
32 }
33 static bool
34 gbt_cashge(const void *a, const void *b, FmgrInfo *flinfo)
35 {
36  return (*((const Cash *) a) >= *((const Cash *) b));
37 }
38 static bool
39 gbt_casheq(const void *a, const void *b, FmgrInfo *flinfo)
40 {
41  return (*((const Cash *) a) == *((const Cash *) b));
42 }
43 static bool
44 gbt_cashle(const void *a, const void *b, FmgrInfo *flinfo)
45 {
46  return (*((const Cash *) a) <= *((const Cash *) b));
47 }
48 static bool
49 gbt_cashlt(const void *a, const void *b, FmgrInfo *flinfo)
50 {
51  return (*((const Cash *) a) < *((const Cash *) b));
52 }
53 
54 static int
55 gbt_cashkey_cmp(const void *a, const void *b, FmgrInfo *flinfo)
56 {
57  cashKEY *ia = (cashKEY *) (((const Nsrt *) a)->t);
58  cashKEY *ib = (cashKEY *) (((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_cash_dist(const void *a, const void *b, FmgrInfo *flinfo)
73 {
74  return GET_FLOAT_DISTANCE(Cash, a, b);
75 }
76 
77 
78 static const gbtree_ninfo tinfo =
79 {
80  gbt_t_cash,
81  sizeof(Cash),
82  16, /* sizeof(gbtreekey16) */
83  gbt_cashgt,
84  gbt_cashge,
85  gbt_casheq,
86  gbt_cashle,
87  gbt_cashlt,
90 };
91 
92 
94 Datum
96 {
97  Cash a = PG_GETARG_CASH(0);
98  Cash b = PG_GETARG_CASH(1);
99  Cash r;
100  Cash 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("money out of range")));
110 
111  PG_RETURN_CASH(ra);
112 }
113 
114 /**************************************************
115  * Cash ops
116  **************************************************/
117 
118 
119 Datum
121 {
122  GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
123 
124  PG_RETURN_POINTER(gbt_num_compress(entry, &tinfo));
125 }
126 
127 Datum
129 {
130  GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
131 
132  PG_RETURN_POINTER(gbt_num_fetch(entry, &tinfo));
133 }
134 
135 Datum
137 {
138  GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
139  Cash query = PG_GETARG_CASH(1);
141 
142  /* Oid subtype = PG_GETARG_OID(3); */
143  bool *recheck = (bool *) PG_GETARG_POINTER(4);
144  cashKEY *kkk = (cashKEY *) DatumGetPointer(entry->key);
145  GBT_NUMKEY_R key;
146 
147  /* All cases served by this function are exact */
148  *recheck = false;
149 
150  key.lower = (GBT_NUMKEY *) &kkk->lower;
151  key.upper = (GBT_NUMKEY *) &kkk->upper;
152 
154  gbt_num_consistent(&key, (void *) &query, &strategy, GIST_LEAF(entry), &tinfo, fcinfo->flinfo)
155  );
156 }
157 
158 
159 Datum
161 {
162  GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
163  Cash query = PG_GETARG_CASH(1);
164 
165  /* Oid subtype = PG_GETARG_OID(3); */
166  cashKEY *kkk = (cashKEY *) DatumGetPointer(entry->key);
167  GBT_NUMKEY_R key;
168 
169  key.lower = (GBT_NUMKEY *) &kkk->lower;
170  key.upper = (GBT_NUMKEY *) &kkk->upper;
171 
173  gbt_num_distance(&key, (void *) &query, GIST_LEAF(entry), &tinfo, fcinfo->flinfo)
174  );
175 }
176 
177 
178 Datum
180 {
182  void *out = palloc(sizeof(cashKEY));
183 
184  *(int *) PG_GETARG_POINTER(1) = sizeof(cashKEY);
185  PG_RETURN_POINTER(gbt_num_union((void *) out, entryvec, &tinfo, fcinfo->flinfo));
186 }
187 
188 
189 Datum
191 {
192  cashKEY *origentry = (cashKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
193  cashKEY *newentry = (cashKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
194  float *result = (float *) PG_GETARG_POINTER(2);
195 
196  penalty_num(result, origentry->lower, origentry->upper, newentry->lower, newentry->upper);
197 
198  PG_RETURN_POINTER(result);
199 
200 }
201 
202 Datum
204 {
208  &tinfo, fcinfo->flinfo
209  ));
210 }
211 
212 Datum
214 {
215  cashKEY *b1 = (cashKEY *) PG_GETARG_POINTER(0);
216  cashKEY *b2 = (cashKEY *) 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
Cash lower
Definition: btree_cash.c:12
PG_FUNCTION_INFO_V1(gbt_cash_compress)
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 gbt_cashle(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_cash.c:44
Datum cash_dist(PG_FUNCTION_ARGS)
Definition: btree_cash.c:95
GISTENTRY * gbt_num_fetch(GISTENTRY *entry, const gbtree_ninfo *tinfo)
#define PG_RETURN_FLOAT8(x)
Definition: fmgr.h:326
uint16 StrategyNumber
Definition: stratnum.h:22
int errcode(int sqlerrcode)
Definition: elog.c:575
return result
Definition: formatting.c:1618
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_cash_union(PG_FUNCTION_ARGS)
Definition: btree_cash.c:179
#define Abs(x)
Definition: c.h:812
GISTENTRY * gbt_num_compress(GISTENTRY *entry, const gbtree_ninfo *tinfo)
static bool gbt_cashge(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_cash.c:34
Datum gbt_cash_consistent(PG_FUNCTION_ARGS)
Definition: btree_cash.c:136
Datum gbt_cash_compress(PG_FUNCTION_ARGS)
Definition: btree_cash.c:120
#define ERROR
Definition: elog.h:43
double float8
Definition: c.h:381
#define PG_GETARG_CASH(n)
Definition: cash.h:22
#define penalty_num(result, olower, oupper, nlower, nupper)
Datum key
Definition: gist.h:123
char GBT_NUMKEY
Cash upper
Definition: btree_cash.c:13
static float8 gbt_cash_dist(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_cash.c:72
static bool gbt_cashlt(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_cash.c:49
#define ereport(elevel, rest)
Definition: elog.h:122
#define SAMESIGN(a, b)
#define PG_RETURN_BOOL(x)
Definition: fmgr.h:319
uintptr_t Datum
Definition: postgres.h:372
Datum gbt_cash_picksplit(PG_FUNCTION_ARGS)
Definition: btree_cash.c:203
static int gbt_cashkey_cmp(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_cash.c:55
#define GET_FLOAT_DISTANCE(t, arg1, arg2)
Datum gbt_cash_same(PG_FUNCTION_ARGS)
Definition: btree_cash.c:213
static const gbtree_ninfo tinfo
Definition: btree_cash.c:78
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 Cash
Definition: cash.h:17
Datum gbt_cash_distance(PG_FUNCTION_ARGS)
Definition: btree_cash.c:160
void * palloc(Size size)
Definition: mcxt.c:849
int errmsg(const char *fmt,...)
Definition: elog.c:797
Datum gbt_cash_fetch(PG_FUNCTION_ARGS)
Definition: btree_cash.c:128
static bool gbt_casheq(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_cash.c:39
#define PG_FUNCTION_ARGS
Definition: fmgr.h:158
#define PG_RETURN_CASH(x)
Definition: cash.h:23
Datum gbt_cash_penalty(PG_FUNCTION_ARGS)
Definition: btree_cash.c:190
void * gbt_num_union(GBT_NUMKEY *out, const GistEntryVector *entryvec, const gbtree_ninfo *tinfo, FmgrInfo *flinfo)
static bool gbt_cashgt(const void *a, const void *b, FmgrInfo *flinfo)
Definition: btree_cash.c:29