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Tweak querytree-dependency-extraction code so that columns of tables

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that are explicitly JOINed are not considered dependencies unless they
are actually used in the query: mere presence in the joinaliasvars
list of a JOIN RTE doesn't count as being used.  The patch touches
a number of files because I needed to generalize the API of
query_tree_walker to support an additional flag bit, but the changes
are otherwise quite small.
This commit is contained in:
Tom Lane
2002-09-11 14:48:55 +00:00
parent d634a5903f
commit 6fdc44be71
8 changed files with 89 additions and 55 deletions
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5
src/backend/rewrite/rewriteDefine.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/rewrite/rewriteDefine.c,v 1.79 2002/09/04 20:31:25 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/rewrite/rewriteDefine.c,v 1.80 2002/09/11 14:48:54 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -464,9 +464,10 @@ setRuleCheckAsUser(Query *qry, Oid userid)
}
/* If there are sublinks, search for them and process their RTEs */
/* ignore subqueries in rtable because we already processed them */
if (qry->hasSubLinks)
query_tree_walker(qry, setRuleCheckAsUser_walker, (void *) &userid,
false /* already did the ones in rtable */ );
QTW_IGNORE_SUBQUERIES);
}
/*