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1. full functional WAL for GiST

Browse Source 
2. improve vacuum for gist
   - use FSM
   - full vacuum:
      - reforms parent tuple if it's needed
        ( tuples was deleted on child page or parent tuple remains invalid
          after crash recovery )
      - truncate index file if possible
3. fixes bugs and mistakes
This commit is contained in:
Teodor Sigaev
2005-06-20 10:29:37 +00:00
parent 0b62bbe086
commit d544ec8bbd
11 changed files with 1286 additions and 586 deletions
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19
src/include/access/gist.h
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@ -9,7 +9,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/access/gist.h,v 1.46 2005/05/17 03:34:18 neilc Exp $
* $PostgreSQL: pgsql/src/include/access/gist.h,v 1.47 2005/06/20 10:29:36 teodor Exp $
*
*-------------------------------------------------------------------------
*/
@ -36,6 +36,8 @@
* Page opaque data in a GiST index page.
*/
#define F_LEAF (1 << 0)
#define F_DELETED (1 << 1)
#define F_TUPLES_DELETED (1 << 2)
typedef struct GISTPageOpaqueData
{
@ -56,6 +58,7 @@ typedef struct GIST_SPLITVEC
* spl_left */
int spl_lattrsize[INDEX_MAX_KEYS];
bool spl_lisnull[INDEX_MAX_KEYS];
bool spl_leftvalid;
OffsetNumber *spl_right; /* array of entries that go right */
int spl_nright; /* size of the array */
@ -64,6 +67,7 @@ typedef struct GIST_SPLITVEC
* spl_right */
int spl_rattrsize[INDEX_MAX_KEYS];
bool spl_risnull[INDEX_MAX_KEYS];
bool spl_rightvalid;
int *spl_idgrp;
int *spl_ngrp; /* number in each group */
@ -86,7 +90,18 @@ typedef struct GISTENTRY
bool leafkey;
} GISTENTRY;
#define GIST_LEAF(entry) (((GISTPageOpaque) PageGetSpecialPointer((entry)->page))->flags & F_LEAF)
#define GistPageIsLeaf(page) (((GISTPageOpaque) PageGetSpecialPointer(page))->flags & F_LEAF)
#define GIST_LEAF(entry) (GistPageIsLeaf((entry)->page))
#define GistPageSetLeaf(page) (((GISTPageOpaque) PageGetSpecialPointer(page))->flags |= F_LEAF)
#define GistPageSetNonLeaf(page) (((GISTPageOpaque) PageGetSpecialPointer(page))->flags &= ~F_LEAF)
#define GistPageIsDeleted(page) (((GISTPageOpaque) PageGetSpecialPointer(page))->flags & F_DELETED)
#define GistPageSetDeleted(page) (((GISTPageOpaque) PageGetSpecialPointer(page))->flags |= F_DELETED)
#define GistPageSetNonDeleted(page) (((GISTPageOpaque) PageGetSpecialPointer(page))->flags &= ~F_DELETED)
#define GistTuplesDeleted(page) (((GISTPageOpaque) PageGetSpecialPointer(page))->flags & F_TUPLES_DELETED)
#define GistMarkTuplesDeleted(page) (((GISTPageOpaque) PageGetSpecialPointer(page))->flags |= F_TUPLES_DELETED)
#define GistClearTuplesDeleted(page) (((GISTPageOpaque) PageGetSpecialPointer(page))->flags &= ~F_TUPLES_DELETED)
/*
* Vector of GISTENTRY structs; user-defined methods union and pick