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First cut at full support for OUTER JOINs. There are still a few loose

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ends to clean up (see my message of same date to pghackers), but mostly
it works.  INITDB REQUIRED!
This commit is contained in:
Tom Lane
2000-09-12 21:07:18 +00:00
parent b5c0ab278b
commit ed5003c584
93 changed files with 6386 additions and 4262 deletions
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7
src/backend/parser/parse_agg.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/parse_agg.c,v 1.39 2000/07/17 03:05:02 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/parse_agg.c,v 1.40 2000/09/12 21:07:02 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -152,6 +152,11 @@ parseCheckAggregates(ParseState *pstate, Query *qry)
*/
if (contain_agg_clause(qry->qual))
elog(ERROR, "Aggregates not allowed in WHERE clause");
/*
* ON-conditions in JOIN expressions are like WHERE clauses.
*/
if (contain_agg_clause((Node *) qry->jointree))
elog(ERROR, "Aggregates not allowed in JOIN conditions");
/*
* No aggregates allowed in GROUP BY clauses, either.