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Promote row expressions to full-fledged citizens of the expression syntax,

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rather than allowing them only in a few special cases as before.  In
particular you can now pass a ROW() construct to a function that accepts
a rowtype parameter.  Internal generation of RowExprs fixes a number of
corner cases that used to not work very well, such as referencing the
whole-row result of a JOIN or subquery.  This represents a further step in
the work I started a month or so back to make rowtype values into
first-class citizens.
This commit is contained in:
Tom Lane
2004-05-10 22:44:49 +00:00
parent 9a939886ac
commit 2f63232d30
34 changed files with 1281 additions and 551 deletions
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5
src/backend/rewrite/rewriteHandler.c
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/rewrite/rewriteHandler.c,v 1.134 2004/04/01 21:28:44 tgl Exp $
* $PostgreSQL: pgsql/src/backend/rewrite/rewriteHandler.c,v 1.135 2004/05/10 22:44:46 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -212,6 +212,8 @@ rewriteRuleAction(Query *parsetree,
sub_action = (Query *) ResolveNew((Node *) sub_action,
new_varno,
0,
rt_fetch(new_varno,
sub_action->rtable),
parsetree->targetList,
event,
current_varno);
@ -947,6 +949,7 @@ CopyAndAddInvertedQual(Query *parsetree,
new_qual = ResolveNew(new_qual,
PRS2_NEW_VARNO,
0,
rt_fetch(rt_index, parsetree->rtable),
parsetree->targetList,
event,
rt_index);