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Som improve page split in multicolumn GiST index.

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If user picksplit on n-th column generate equals
left and right unions then it calls picksplit on n+1-th
column.
This commit is contained in:
Teodor Sigaev
2006-05-29 12:50:06 +00:00
parent 0a6fde5a26
commit b32000eda4
3 changed files with 57 additions and 42 deletions
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4
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 1.16 2006/05/24 11:01:39 teodor Exp $
* $PostgreSQL: pgsql/src/include/access/gist_private.h,v 1.17 2006/05/29 12:50:06 teodor Exp $
*
*-------------------------------------------------------------------------
*/
@ -312,7 +312,7 @@ extern void GISTInitBuffer(Buffer b, uint32 f);
extern void gistdentryinit(GISTSTATE *giststate, int nkey, GISTENTRY *e,
Datum k, Relation r, Page pg, OffsetNumber o,
int b, bool l, bool isNull);
void gistUserPicksplit(Relation r, GistEntryVector *entryvec, int attno, GIST_SPLITVEC *v,
bool gistUserPicksplit(Relation r, GistEntryVector *entryvec, int attno, GIST_SPLITVEC *v,
IndexTuple *itup, int len, GISTSTATE *giststate);
/* gistvacuum.c */