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authorTom Lane <tgl@sss.pgh.pa.us>2005-03-10 23:21:26 +0000
committerTom Lane <tgl@sss.pgh.pa.us>2005-03-10 23:21:26 +0000
commit595ed2a8550e34c0abe64569a104d92ad077ec08 (patch)
tree004764220f537256d96637d5a119fd2086ed40ec /src/include/nodes
parent609e32b929cf8684f8ae3a2b9f1655b372fb8b85 (diff)
downloadpostgresql-595ed2a8550e34c0abe64569a104d92ad077ec08.tar.gz
Make the behavior of HAVING without GROUP BY conform to the SQL spec.
Formerly, if such a clause contained no aggregate functions we mistakenly treated it as equivalent to WHERE. Per spec it must cause the query to be treated as a grouped query of a single group, the same as appearance of aggregate functions would do. Also, the HAVING filter must execute after aggregate function computation even if it itself contains no aggregate functions.
Diffstat (limited to 'src/include/nodes')
-rw-r--r--src/include/nodes/parsenodes.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h
index f5c3861978..cd3eb634d4 100644
--- a/src/include/nodes/parsenodes.h
+++ b/src/include/nodes/parsenodes.h
@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $PostgreSQL: pgsql/src/include/nodes/parsenodes.h,v 1.272 2005/01/27 03:18:42 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/nodes/parsenodes.h,v 1.273 2005/03/10 23:21:24 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -128,6 +128,7 @@ typedef struct Query
List *in_info_list; /* list of InClauseInfos */
List *query_pathkeys; /* desired pathkeys for query_planner() */
bool hasJoinRTEs; /* true if any RTEs are RTE_JOIN kind */
+ bool hasHavingQual; /* true if havingQual was non-null */
} Query;