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Add a back-link from IndexOptInfo structs to their parent RelOptInfo

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structs.  There are many places in the planner where we were passing
both a rel and an index to subroutines, and now need only pass the
index struct.  Notationally simpler, and perhaps a tad faster.
This commit is contained in:
Tom Lane
2005-03-27 06:29:49 +00:00
parent febc9a613c
commit 926e8a00d3
11 changed files with 95 additions and 141 deletions
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3
src/include/nodes/relation.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/nodes/relation.h,v 1.103 2005/02/21 06:43:04 neilc Exp $
* $PostgreSQL: pgsql/src/include/nodes/relation.h,v 1.104 2005/03/27 06:29:45 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -253,6 +253,7 @@ typedef struct IndexOptInfo
NodeTag type;
Oid indexoid; /* OID of the index relation */
RelOptInfo *rel; /* back-link to index's table */
/* statistics from pg_class */
BlockNumber pages; /* number of disk pages in index */