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postgresql/contrib/tsearch2/query_util.h

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New features for tsearch2: 1 Comparison operation for tsquery 2 Btree index on tsquery 3 numnode(tsquery) - returns 'length' of tsquery 4 tsquery @ tsquery, tsquery ~ tsquery - contains, contained for tsquery. Note: They don't gurantee exact result, only MAY BE, so it useful only for speed up rewrite functions 5 GiST index support for @,~ 6 rewrite(): select rewrite(orig, what, to); select rewrite(ARRAY[orig, what, to]) from tsquery_table; select rewrite(orig, 'select what, to from tsquery_table;'); 7 significantly improve cover algorithm
2005-11-09 01:08:46 +08:00
#ifndef __QUERY_UTIL_H__
#define __QUERY_UTIL_H__
#include "postgres.h"
#include "utils/memutils.h"
#include "query.h"
Re-run pgindent, fixing a problem where comment lines after a blank comment line where output as too long, and update typedefs for /lib directory. Also fix case where identifiers were used as variable names in the backend, but as typedefs in ecpg (favor the backend for indenting). Backpatch to 8.1.X.
2005-11-23 02:17:34 +08:00
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
{
New features for tsearch2: 1 Comparison operation for tsquery 2 Btree index on tsquery 3 numnode(tsquery) - returns 'length' of tsquery 4 tsquery @ tsquery, tsquery ~ tsquery - contains, contained for tsquery. Note: They don't gurantee exact result, only MAY BE, so it useful only for speed up rewrite functions 5 GiST index support for @,~ 6 rewrite(): select rewrite(orig, what, to); select rewrite(ARRAY[orig, what, to]) from tsquery_table; select rewrite(orig, 'select what, to from tsquery_table;'); 7 significantly improve cover algorithm
2005-11-09 01:08:46 +08:00
PlainMemory,
SPIMemory,
AggMemory
Re-run pgindent, fixing a problem where comment lines after a blank comment line where output as too long, and update typedefs for /lib directory. Also fix case where identifiers were used as variable names in the backend, but as typedefs in ecpg (favor the backend for indenting). Backpatch to 8.1.X.
2005-11-23 02:17:34 +08:00
} MemoryType;
New features for tsearch2: 1 Comparison operation for tsquery 2 Btree index on tsquery 3 numnode(tsquery) - returns 'length' of tsquery 4 tsquery @ tsquery, tsquery ~ tsquery - contains, contained for tsquery. Note: They don't gurantee exact result, only MAY BE, so it useful only for speed up rewrite functions 5 GiST index support for @,~ 6 rewrite(): select rewrite(orig, what, to); select rewrite(ARRAY[orig, what, to]) from tsquery_table; select rewrite(orig, 'select what, to from tsquery_table;'); 7 significantly improve cover algorithm
2005-11-09 01:08:46 +08:00
Re-run pgindent, fixing a problem where comment lines after a blank comment line where output as too long, and update typedefs for /lib directory. Also fix case where identifiers were used as variable names in the backend, but as typedefs in ecpg (favor the backend for indenting). Backpatch to 8.1.X.
2005-11-23 02:17:34 +08:00
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);
New features for tsearch2: 1 Comparison operation for tsquery 2 Btree index on tsquery 3 numnode(tsquery) - returns 'length' of tsquery 4 tsquery @ tsquery, tsquery ~ tsquery - contains, contained for tsquery. Note: They don't gurantee exact result, only MAY BE, so it useful only for speed up rewrite functions 5 GiST index support for @,~ 6 rewrite(): select rewrite(orig, what, to); select rewrite(ARRAY[orig, what, to]) from tsquery_table; select rewrite(orig, 'select what, to from tsquery_table;'); 7 significantly improve cover algorithm
2005-11-09 01:08:46 +08:00
Re-run pgindent, fixing a problem where comment lines after a blank comment line where output as too long, and update typedefs for /lib directory. Also fix case where identifiers were used as variable names in the backend, but as typedefs in ecpg (favor the backend for indenting). Backpatch to 8.1.X.
2005-11-23 02:17:34 +08:00
extern MemoryContext AggregateContext;
New features for tsearch2: 1 Comparison operation for tsquery 2 Btree index on tsquery 3 numnode(tsquery) - returns 'length' of tsquery 4 tsquery @ tsquery, tsquery ~ tsquery - contains, contained for tsquery. Note: They don't gurantee exact result, only MAY BE, so it useful only for speed up rewrite functions 5 GiST index support for @,~ 6 rewrite(): select rewrite(orig, what, to); select rewrite(ARRAY[orig, what, to]) from tsquery_table; select rewrite(orig, 'select what, to from tsquery_table;'); 7 significantly improve cover algorithm
2005-11-09 01:08:46 +08:00
Re-run pgindent, fixing a problem where comment lines after a blank comment line where output as too long, and update typedefs for /lib directory. Also fix case where identifiers were used as variable names in the backend, but as typedefs in ecpg (favor the backend for indenting). Backpatch to 8.1.X.
2005-11-23 02:17:34 +08:00
#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) )
New features for tsearch2: 1 Comparison operation for tsquery 2 Btree index on tsquery 3 numnode(tsquery) - returns 'length' of tsquery 4 tsquery @ tsquery, tsquery ~ tsquery - contains, contained for tsquery. Note: They don't gurantee exact result, only MAY BE, so it useful only for speed up rewrite functions 5 GiST index support for @,~ 6 rewrite(): select rewrite(orig, what, to); select rewrite(ARRAY[orig, what, to]) from tsquery_table; select rewrite(orig, 'select what, to from tsquery_table;'); 7 significantly improve cover algorithm
2005-11-09 01:08:46 +08:00
#endif
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