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First non-stub implementation of shared free space map. It's not super

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useful as yet, since its primary source of information is (full) VACUUM,
which makes a concerted effort to get rid of free space before telling
the map about it ... next stop is concurrent VACUUM ...
This commit is contained in:
Tom Lane
2001-07-02 20:50:46 +00:00
parent 755e367cb2
commit 42748087c1
6 changed files with 994 additions and 39 deletions
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3
src/include/storage/freespace.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: freespace.h,v 1.1 2001/06/27 23:31:39 tgl Exp $
* $Id: freespace.h,v 1.2 2001/07/02 20:50:46 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -45,6 +45,7 @@ extern void MultiRecordFreeSpace(RelFileNode *rel,
BlockNumber *pages,
Size *spaceAvail);
extern void FreeSpaceMapForgetRel(RelFileNode *rel);
extern void FreeSpaceMapForgetDatabase(Oid dbid);
#ifdef FREESPACE_DEBUG
extern void DumpFreeSpace(void);