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authorThomas G. Lockhart <lockhart@fourpalms.org>1998-12-23 14:38:40 +0000
committerThomas G. Lockhart <lockhart@fourpalms.org>1998-12-23 14:38:40 +0000
commit18bdefa23f94891ab80d8b6955278dd1afacad0d (patch)
tree589c79bc381d96975398ce5dcfff2dae41f9e29c /src/backend/parser/parse_func.c
parent5afe8d3478aa33d8bfe5294be78efcddd9a9eac5 (diff)
downloadpostgresql-18bdefa23f94891ab80d8b6955278dd1afacad0d.tar.gz
postgresql-18bdefa23f94891ab80d8b6955278dd1afacad0d.zip
Fix reference to null pointer when no aggregate function candidates
are available. Problem reported by David Sauer <davids@iol.cz>. Modify information in resulting error message to indicate both agg name and data type.
Diffstat (limited to 'src/backend/parser/parse_func.c')
-rw-r--r--src/backend/parser/parse_func.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/backend/parser/parse_func.c b/src/backend/parser/parse_func.c
index bc9c9a738a4..594b705b672 100644
--- a/src/backend/parser/parse_func.c
+++ b/src/backend/parser/parse_func.c
@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/parser/parse_func.c,v 1.35 1998/12/15 12:46:14 vadim Exp $
+ * $Header: /cvsroot/pgsql/src/backend/parser/parse_func.c,v 1.36 1998/12/23 14:38:40 thomas Exp $
*
*-------------------------------------------------------------------------
*/
@@ -225,7 +225,7 @@ agg_select_candidate(Oid typeid, CandidateList candidates)
}
}
/* otherwise, don't bother keeping this one around... */
- else
+ else if (last_candidate != NULL)
{
last_candidate->next = NULL;
}
@@ -399,8 +399,8 @@ ParseFuncOrColumn(ParseState *pstate, char *funcname, List *fargs,
}
else
{
- elog(ERROR,"Unable to select an aggregate function for type '%s'",
- typeidTypeName(basetype));
+ elog(ERROR,"Unable to select an aggregate function %s(%s)",
+ funcname, typeidTypeName(basetype));
}
}