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Reduce size of critical section and remove call of user-defined functions in

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insertion and deletion, modify gistSplit() to do not use buffers.

 TODO: gistvacuumcleanup and XLOG
This commit is contained in:
Teodor Sigaev
2006-05-10 09:19:54 +00:00
parent 12049d343e
commit 10dd8df68e
5 changed files with 259 additions and 264 deletions
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15
src/include/access/gist_private.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/access/gist_private.h,v 1.12 2006/03/30 23:03:10 tgl Exp $
* $PostgreSQL: pgsql/src/include/access/gist_private.h,v 1.13 2006/05/10 09:19:54 teodor Exp $
*
*-------------------------------------------------------------------------
*/
@ -138,6 +138,8 @@ typedef struct SplitedPageLayout
gistxlogPage block;
IndexTupleData *list;
int lenlist;
IndexTuple itup; /* union key for page */
Page page; /* to operate */
Buffer buffer; /* to write after all proceed */
struct SplitedPageLayout *next;
@ -234,8 +236,8 @@ extern void freeGISTstate(GISTSTATE *giststate);
extern void gistmakedeal(GISTInsertState *state, GISTSTATE *giststate);
extern void gistnewroot(Relation r, Buffer buffer, IndexTuple *itup, int len, ItemPointer key);
extern IndexTuple *gistSplit(Relation r, Buffer buffer, IndexTuple *itup,
int *len, SplitedPageLayout **dist, GISTSTATE *giststate);
extern SplitedPageLayout *gistSplit(Relation r, Page page, IndexTuple *itup,
int len, GISTSTATE *giststate);
extern GISTInsertStack *gistFindPath(Relation r, BlockNumber child);
@ -261,11 +263,16 @@ extern Datum gistgettuple(PG_FUNCTION_ARGS);
extern Datum gistgetmulti(PG_FUNCTION_ARGS);
/* gistutil.c */
#define GiSTPageSize \
( BLCKSZ - SizeOfPageHeaderData - MAXALIGN(sizeof(GISTPageOpaqueData)) )
extern bool gistfitpage(IndexTuple *itvec, int len);
extern bool gistnospace(Page page, IndexTuple *itvec, int len, OffsetNumber todelete);
extern void gistcheckpage(Relation rel, Buffer buf);
extern Buffer gistNewBuffer(Relation r);
extern OffsetNumber gistfillbuffer(Relation r, Page page, IndexTuple *itup,
int len, OffsetNumber off);
extern bool gistnospace(Page page, IndexTuple *itvec, int len);
extern IndexTuple *gistextractbuffer(Buffer buffer, int *len /* out */ );
extern IndexTuple *gistjoinvector(
IndexTuple *itvec, int *len,