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Subselects in FROM clause, per ISO syntax: FROM (SELECT ...) [AS] alias.

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(Don't forget that an alias is required.)  Views reimplemented as expanding
to subselect-in-FROM.  Grouping, aggregates, DISTINCT in views actually
work now (he says optimistically).  No UNION support in subselects/views
yet, but I have some ideas about that.  Rule-related permissions checking
moved out of rewriter and into executor.
INITDB REQUIRED!
This commit is contained in:
Tom Lane
2000-09-29 18:21:41 +00:00
parent 6f64c2e54a
commit 3a94e789f5
77 changed files with 3176 additions and 2661 deletions
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4
src/backend/optimizer/prep/prepunion.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/prep/prepunion.c,v 1.52 2000/09/12 21:06:57 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/prep/prepunion.c,v 1.53 2000/09/29 18:21:34 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -411,7 +411,7 @@ find_all_inheritors(Oid parentrel)
* there can't be any cycles in the inheritance graph anyway.)
*/
currentchildren = set_differencei(currentchildren, examined_relids);
unexamined_relids = LispUnioni(unexamined_relids, currentchildren);
unexamined_relids = set_unioni(unexamined_relids, currentchildren);
}
return examined_relids;