postgresql/contrib/tsearch2/query_util.h

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