mirror of
https://git.postgresql.org/git/postgresql.git
synced 2026-02-26 00:07:01 +08:00
51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
/*
|
|
* AM-callable functions for BRIN indexes
|
|
*
|
|
* Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group
|
|
* Portions Copyright (c) 1994, Regents of the University of California
|
|
*
|
|
* IDENTIFICATION
|
|
* src/include/access/brin.h
|
|
*/
|
|
#ifndef BRIN_H
|
|
#define BRIN_H
|
|
|
|
#include "fmgr.h"
|
|
#include "nodes/execnodes.h"
|
|
#include "utils/relcache.h"
|
|
|
|
|
|
/*
|
|
* prototypes for functions in brin.c (external entry points for BRIN)
|
|
*/
|
|
extern Datum brinbuild(PG_FUNCTION_ARGS);
|
|
extern Datum brinbuildempty(PG_FUNCTION_ARGS);
|
|
extern Datum brininsert(PG_FUNCTION_ARGS);
|
|
extern Datum brinbeginscan(PG_FUNCTION_ARGS);
|
|
extern Datum bringetbitmap(PG_FUNCTION_ARGS);
|
|
extern Datum brinrescan(PG_FUNCTION_ARGS);
|
|
extern Datum brinendscan(PG_FUNCTION_ARGS);
|
|
extern Datum brinmarkpos(PG_FUNCTION_ARGS);
|
|
extern Datum brinrestrpos(PG_FUNCTION_ARGS);
|
|
extern Datum brinbulkdelete(PG_FUNCTION_ARGS);
|
|
extern Datum brinvacuumcleanup(PG_FUNCTION_ARGS);
|
|
extern Datum brincostestimate(PG_FUNCTION_ARGS);
|
|
extern Datum brinoptions(PG_FUNCTION_ARGS);
|
|
|
|
/*
|
|
* Storage type for BRIN's reloptions
|
|
*/
|
|
typedef struct BrinOptions
|
|
{
|
|
int32 vl_len_; /* varlena header (do not touch directly!) */
|
|
BlockNumber pagesPerRange;
|
|
} BrinOptions;
|
|
|
|
#define BRIN_DEFAULT_PAGES_PER_RANGE 128
|
|
#define BrinGetPagesPerRange(relation) \
|
|
((relation)->rd_options ? \
|
|
((BrinOptions *) (relation)->rd_options)->pagesPerRange : \
|
|
BRIN_DEFAULT_PAGES_PER_RANGE)
|
|
|
|
#endif /* BRIN_H */
|