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
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
#include "btree_gist.h"
#include "btree_utils_num.h"
#include "utils/date.h"
typedef struct
{
DateADT lower;
DateADT upper;
} dateKEY;
/*
** date ops
*/
PG_FUNCTION_INFO_V1(gbt_date_compress);
PG_FUNCTION_INFO_V1(gbt_date_union);
PG_FUNCTION_INFO_V1(gbt_date_picksplit);
PG_FUNCTION_INFO_V1(gbt_date_consistent);
PG_FUNCTION_INFO_V1(gbt_date_penalty);
PG_FUNCTION_INFO_V1(gbt_date_same);
Datum gbt_date_compress(PG_FUNCTION_ARGS);
Datum gbt_date_union(PG_FUNCTION_ARGS);
Datum gbt_date_picksplit(PG_FUNCTION_ARGS);
Datum gbt_date_consistent(PG_FUNCTION_ARGS);
Datum gbt_date_penalty(PG_FUNCTION_ARGS);
Datum gbt_date_same(PG_FUNCTION_ARGS);
static bool gbt_dategt (const void *a, const void *b)
{
return DatumGetBool(
DirectFunctionCall2(date_gt,DateADTGetDatum( *((DateADT*)a) ), DateADTGetDatum( *((DateADT*)b) ) )
);
}
static bool gbt_datege (const void *a, const void *b)
{
return DatumGetBool(
DirectFunctionCall2(date_ge,DateADTGetDatum( *((DateADT*)a) ), DateADTGetDatum( *((DateADT*)b) ) )
);
}
static bool gbt_dateeq (const void *a, const void *b)
{
return DatumGetBool(
DirectFunctionCall2(date_eq,DateADTGetDatum( *((DateADT*)a) ), DateADTGetDatum( *((DateADT*)b) ) )
);
}
static bool gbt_datele (const void *a, const void *b)
{
return DatumGetBool(
DirectFunctionCall2(date_le,DateADTGetDatum( *((DateADT*)a) ), DateADTGetDatum( *((DateADT*)b) ) )
);
}
static bool gbt_datelt (const void *a, const void *b)
{
return DatumGetBool(
DirectFunctionCall2(date_lt,DateADTGetDatum( *((DateADT*)a) ), DateADTGetDatum( *((DateADT*)b) ) )
);
}
static int
gbt_datekey_cmp(const void *a, const void *b)
{
if ( gbt_dategt( (void*)&(((Nsrt *) a)->t[0]) , (void*)&(((Nsrt *) b)->t[0]) ) ){
return 1;
} else
if ( gbt_datelt( (void*)&(((Nsrt *) a)->t[0]) , (void*)&(((Nsrt *) b)->t[0]) ) ){
return -1;
}
return 0;
}
static const gbtree_ninfo tinfo =
{
gbt_t_date,
sizeof(DateADT),
gbt_dategt,
gbt_datege,
gbt_dateeq,
gbt_datele,
gbt_datelt,
gbt_datekey_cmp
};
/**************************************************
* date ops
**************************************************/
Datum
gbt_date_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_date_consistent(PG_FUNCTION_ARGS)
{
GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
DateADT query = PG_GETARG_DATEADT( 1 );
dateKEY *kkk = (dateKEY *) 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_date_union(PG_FUNCTION_ARGS)
{
GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
void *out = palloc(sizeof(dateKEY));
*(int *) PG_GETARG_POINTER(1) = sizeof(dateKEY);
PG_RETURN_POINTER( gbt_num_union ( (void*)out, entryvec, &tinfo ) );
}
Datum
gbt_date_penalty(PG_FUNCTION_ARGS)
{
dateKEY *origentry = (dateKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
dateKEY *newentry = (dateKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
float *result = (float *) PG_GETARG_POINTER(2);
int32 diff, res ;
diff = DatumGetInt32(DirectFunctionCall2(
date_mi,
DateADTGetDatum(newentry->upper),
DateADTGetDatum(origentry->upper)));
res = Max(diff, 0);
diff = DatumGetInt32(DirectFunctionCall2(
date_mi,
DateADTGetDatum(origentry->lower),
DateADTGetDatum(newentry->lower)));
res += Max(diff, 0);
*result = 0.0;
if ( res > 0 ){
diff = DatumGetInt32(DirectFunctionCall2(
date_mi,
DateADTGetDatum(origentry->upper),
DateADTGetDatum(origentry->lower)));
*result += FLT_MIN ;
*result += (float) ( res / ( (double) ( res + diff ) ) );
*result *= ( FLT_MAX / ( ( (GISTENTRY *) PG_GETARG_POINTER(0))->rel->rd_att->natts + 1 ) );
}
PG_RETURN_POINTER(result);
}
Datum
gbt_date_picksplit(PG_FUNCTION_ARGS)
{
PG_RETURN_POINTER(gbt_num_picksplit(
(GistEntryVector *) PG_GETARG_POINTER(0),
(GIST_SPLITVEC *) PG_GETARG_POINTER(1),
&tinfo
));
}
Datum
gbt_date_same(PG_FUNCTION_ARGS)
{
dateKEY *b1 = (dateKEY *) PG_GETARG_POINTER(0);
dateKEY *b2 = (dateKEY *) PG_GETARG_POINTER(1);
bool *result = (bool *) PG_GETARG_POINTER(2);
*result = gbt_num_same ( (void*)b1, (void*)b2, &tinfo );
PG_RETURN_POINTER(result);
}
|
