1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
#include "btree_gist.h"
#include "btree_utils_num.h"
#include "utils/cash.h"
typedef struct
{
Cash lower;
Cash upper;
} cashKEY;
/*
** Cash ops
*/
PG_FUNCTION_INFO_V1(gbt_cash_compress);
PG_FUNCTION_INFO_V1(gbt_cash_union);
PG_FUNCTION_INFO_V1(gbt_cash_picksplit);
PG_FUNCTION_INFO_V1(gbt_cash_consistent);
PG_FUNCTION_INFO_V1(gbt_cash_penalty);
PG_FUNCTION_INFO_V1(gbt_cash_same);
Datum gbt_cash_compress(PG_FUNCTION_ARGS);
Datum gbt_cash_union(PG_FUNCTION_ARGS);
Datum gbt_cash_picksplit(PG_FUNCTION_ARGS);
Datum gbt_cash_consistent(PG_FUNCTION_ARGS);
Datum gbt_cash_penalty(PG_FUNCTION_ARGS);
Datum gbt_cash_same(PG_FUNCTION_ARGS);
static bool gbt_cashgt (const void *a, const void *b)
{
return ( *((Cash*)a) > *((Cash*)b) );
}
static bool gbt_cashge (const void *a, const void *b)
{
return ( *((Cash*)a) >= *((Cash*)b) );
}
static bool gbt_casheq (const void *a, const void *b)
{
return ( *((Cash*)a) == *((Cash*)b) );
}
static bool gbt_cashle (const void *a, const void *b)
{
return ( *((Cash*)a) <= *((Cash*)b) );
}
static bool gbt_cashlt (const void *a, const void *b)
{
return ( *((Cash*)a) < *((Cash*)b) );
}
static int
gbt_cashkey_cmp(const void *a, const void *b)
{
if ( *(Cash*)&(((Nsrt *) a)->t[0]) > *(Cash*)&(((Nsrt *) b)->t[0]) ){
return 1;
} else
if ( *(Cash*)&(((Nsrt *) a)->t[0]) < *(Cash*)&(((Nsrt *) b)->t[0]) ){
return -1;
}
return 0;
}
static const gbtree_ninfo tinfo =
{
gbt_t_cash,
sizeof(Cash),
gbt_cashgt,
gbt_cashge,
gbt_casheq,
gbt_cashle,
gbt_cashlt,
gbt_cashkey_cmp
};
/**************************************************
* Cash ops
**************************************************/
Datum
gbt_cash_compress(PG_FUNCTION_ARGS)
{
GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
GISTENTRY *retval = NULL;
PG_RETURN_POINTER( gbt_num_compress( retval , entry , &tinfo ));
}
Datum
gbt_cash_consistent(PG_FUNCTION_ARGS)
{
GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
Cash query = (*((Cash *) PG_GETARG_POINTER(1)));
cashKEY *kkk = (cashKEY *) DatumGetPointer(entry->key);
GBT_NUMKEY_R key ;
StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
key.lower = (GBT_NUMKEY*) &kkk->lower ;
key.upper = (GBT_NUMKEY*) &kkk->upper ;
PG_RETURN_BOOL(
gbt_num_consistent( &key, (void*)&query,&strategy,GIST_LEAF(entry),&tinfo)
);
}
Datum
gbt_cash_union(PG_FUNCTION_ARGS)
{
GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
void *out = palloc(sizeof(cashKEY));
*(int *) PG_GETARG_POINTER(1) = sizeof(cashKEY);
PG_RETURN_POINTER( gbt_num_union ( (void*)out, entryvec, &tinfo ) );
}
Datum
gbt_cash_penalty(PG_FUNCTION_ARGS)
{
cashKEY *origentry = (cashKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
cashKEY *newentry = (cashKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
float *result = (float *) PG_GETARG_POINTER(2);
Cash res ;
*result = 0.0;
penalty_range_enlarge ( origentry->lower, origentry->upper, newentry->lower, newentry->upper );
if ( res > 0 ){
*result += FLT_MIN ;
*result += (float) ( res / ( (double) ( res + origentry->upper - origentry->lower ) ) );
*result *= ( FLT_MAX / ( ( (GISTENTRY *) PG_GETARG_POINTER(0))->rel->rd_att->natts + 1 ) );
}
PG_RETURN_POINTER(result);
}
Datum
gbt_cash_picksplit(PG_FUNCTION_ARGS)
{
PG_RETURN_POINTER(gbt_num_picksplit(
(GistEntryVector *) PG_GETARG_POINTER(0),
(GIST_SPLITVEC *) PG_GETARG_POINTER(1),
&tinfo
));
}
Datum
gbt_cash_same(PG_FUNCTION_ARGS)
{
cashKEY *b1 = (cashKEY *) PG_GETARG_POINTER(0);
cashKEY *b2 = (cashKEY *) PG_GETARG_POINTER(1);
bool *result = (bool *) PG_GETARG_POINTER(2);
*result = gbt_num_same ( (void*)b1, (void*)b2, &tinfo );
PG_RETURN_POINTER(result);
}
|
