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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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10
src/backend/optimizer/util/restrictinfo.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/util/restrictinfo.c,v 1.11 2000/09/12 21:06:58 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/util/restrictinfo.c,v 1.12 2000/09/29 18:21:23 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -59,7 +59,7 @@ get_actual_clauses(List *restrictinfo_list)
* get_actual_join_clauses
*
* Extract clauses from 'restrictinfo_list', separating those that
* came from JOIN/ON conditions from those that didn't.
* syntactically match the join level from those that were pushed down.
*/
void
get_actual_join_clauses(List *restrictinfo_list,
@@ -74,9 +74,9 @@ get_actual_join_clauses(List *restrictinfo_list,
{
RestrictInfo *clause = (RestrictInfo *) lfirst(temp);
if (clause->isjoinqual)
*joinquals = lappend(*joinquals, clause->clause);
else
if (clause->ispusheddown)
*otherquals = lappend(*otherquals, clause->clause);
else
*joinquals = lappend(*joinquals, clause->clause);
}
}