mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-08-31 00:17:22 +02:00
48 lines
1.0 KiB
C
48 lines
1.0 KiB
C
#ifndef __QUERY_UTIL_H__
|
|
#define __QUERY_UTIL_H__
|
|
|
|
#include "postgres.h"
|
|
#include "utils/memutils.h"
|
|
|
|
#include "query.h"
|
|
#include "executor/spi.h"
|
|
|
|
typedef struct QTNode
|
|
{
|
|
ITEM *valnode;
|
|
uint32 flags;
|
|
int4 nchild;
|
|
char *word;
|
|
uint32 sign;
|
|
struct QTNode **child;
|
|
} QTNode;
|
|
|
|
#define QTN_NEEDFREE 0x01
|
|
#define QTN_NOCHANGE 0x02
|
|
#define QTN_WORDFREE 0x04
|
|
|
|
typedef enum
|
|
{
|
|
PlainMemory,
|
|
SPIMemory,
|
|
AggMemory
|
|
} MemoryType;
|
|
|
|
QTNode *QT2QTN(ITEM * in, char *operand);
|
|
QUERYTYPE *QTN2QT(QTNode * in, MemoryType memtype);
|
|
void QTNFree(QTNode * in);
|
|
void QTNSort(QTNode * in);
|
|
void QTNTernary(QTNode * in);
|
|
void QTNBinary(QTNode * in);
|
|
int QTNodeCompare(QTNode * an, QTNode * bn);
|
|
QTNode *QTNCopy(QTNode * in, MemoryType memtype);
|
|
bool QTNEq(QTNode * a, QTNode * b);
|
|
|
|
|
|
extern MemoryContext AggregateContext;
|
|
|
|
#define MEMALLOC(us, s) ( ((us)==SPIMemory) ? SPI_palloc(s) : ( ( (us)==PlainMemory ) ? palloc(s) : MemoryContextAlloc(AggregateContext, (s)) ) )
|
|
#define MEMFREE(us, p) ( ((us)==SPIMemory) ? SPI_pfree(p) : pfree(p) )
|
|
|
|
#endif
|