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The patch does 2 things:

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Fixes  a  bug  in  the rule system that caused a crashing
        backend when a join-view with calculated column  is  used
        in subselect.

        Modifies  EXPLAIN to explain rewritten queries instead of
        the plain SeqScan on a view. Rules can produce very  deep
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Jan.
This commit is contained in:
Bruce Momjian
1998-10-21 16:21:29 +00:00
parent 858a3b570a
commit 524f4b2d10
6 changed files with 500 additions and 553 deletions
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4
src/include/rewrite/rewriteManip.h
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@@ -6,7 +6,7 @@
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: rewriteManip.h,v 1.10 1998/10/08 18:30:41 momjian Exp $
* $Id: rewriteManip.h,v 1.11 1998/10/21 16:21:29 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -18,7 +18,7 @@
#include "rewrite/rewriteHandler.h"
/* RewriteManip.c */
void OffsetVarNodes(Node *node, int offset);
void OffsetVarNodes(Node *node, int offset, int sublevels_up);
void ChangeVarNodes(Node *node, int old_varno, int new_varno,
int sublevels_up);
void AddQual(Query *parsetree, Node *qual);