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First steps towards index scans with heap access decoupled from index

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access: define new index access method functions 'amgetmulti' that can
fetch multiple TIDs per call.  (The functions exist but are totally
untested as yet.)  Since I was modifying pg_am anyway, remove the
no-longer-needed 'rel' parameter from amcostestimate functions, and
also remove the vestigial amowner column that was creating useless
work for Alvaro's shared-object-dependencies project.
Initdb forced due to changes in pg_am.
This commit is contained in:
Tom Lane
2005-03-27 23:53:05 +00:00
parent 351519affc
commit bf3dbb5881
20 changed files with 535 additions and 174 deletions
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3
src/include/access/gist.h
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@ -7,7 +7,7 @@
* 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 1.43 2004/12/31 22:03:21 pgsql Exp $
* $PostgreSQL: pgsql/src/include/access/gist.h,v 1.44 2005/03/27 23:53:04 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -196,5 +196,6 @@ extern void gist_desc(char *buf, uint8 xl_info, char *rec);
/* gistget.c */
extern Datum gistgettuple(PG_FUNCTION_ARGS);
extern Datum gistgetmulti(PG_FUNCTION_ARGS);
#endif /* GIST_H */