1 /*-------------------------------------------------------------------------
4 * POSTGRES free space map for quickly finding free space in relations
7 * Portions Copyright (c) 1996-2015, PostgreSQL Global Development Group
8 * Portions Copyright (c) 1994, Regents of the University of California
10 * src/include/storage/freespace.h
12 *-------------------------------------------------------------------------
17 #include "storage/block.h"
18 #include "storage/relfilenode.h"
19 #include "utils/relcache.h"
21 /* prototypes for public functions in freespace.c */
22 extern Size GetRecordedFreeSpace(Relation rel, BlockNumber heapBlk);
23 extern BlockNumber GetPageWithFreeSpace(Relation rel, Size spaceNeeded);
24 extern BlockNumber RecordAndGetPageWithFreeSpace(Relation rel,
28 extern void RecordPageWithFreeSpace(Relation rel, BlockNumber heapBlk,
30 extern void XLogRecordPageWithFreeSpace(RelFileNode rnode, BlockNumber heapBlk,
33 extern void FreeSpaceMapTruncateRel(Relation rel, BlockNumber nblocks);
34 extern void FreeSpaceMapVacuum(Relation rel);
36 #endif /* FREESPACE_H_ */