blob: e66f72a139068f5d86ed6841c1532bc1f3694d51 (
plain)
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
|
/*
* $PostgreSQL: pgsql/contrib/hstore/hstore.h,v 1.6 2008/05/12 00:00:42 alvherre Exp $
*/
#ifndef __HSTORE_H__
#define __HSTORE_H__
#include "fmgr.h"
typedef struct
{
uint16 keylen;
uint16 vallen;
uint32
valisnull:1,
pos:31;
} HEntry;
typedef struct
{
int32 vl_len_; /* varlena header (do not touch directly!) */
int4 size;
char data[1];
} HStore;
#define HSHRDSIZE (VARHDRSZ + sizeof(int4))
#define CALCDATASIZE(x, lenstr) ( (x) * sizeof(HEntry) + HSHRDSIZE + (lenstr) )
#define ARRPTR(x) ( (HEntry*) ( (char*)(x) + HSHRDSIZE ) )
#define STRPTR(x) ( (char*)(x) + HSHRDSIZE + ( sizeof(HEntry) * ((HStore*)x)->size ) )
#define PG_GETARG_HS(x) ((HStore*)PG_DETOAST_DATUM(PG_GETARG_DATUM(x)))
typedef struct
{
char *key;
char *val;
uint16 keylen;
uint16 vallen;
bool isnull;
bool needfree;
} Pairs;
int comparePairs(const void *a, const void *b);
int uniquePairs(Pairs * a, int4 l, int4 *buflen);
#define HStoreContainsStrategyNumber 7
#define HStoreExistsStrategyNumber 9
#endif /* __HSTORE_H__ */
|
