diff options
Diffstat (limited to 'src/backend/executor/nodeGroup.c')
| -rw-r--r-- | src/backend/executor/nodeGroup.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/backend/executor/nodeGroup.c b/src/backend/executor/nodeGroup.c index 15ba3ed9417..196d347df43 100644 --- a/src/backend/executor/nodeGroup.c +++ b/src/backend/executor/nodeGroup.c @@ -13,7 +13,7 @@ * columns. (ie. tuples from the same group are consecutive) * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/executor/nodeGroup.c,v 1.11 1997/10/27 12:00:43 vadim Exp $ + * $Header: /cvsroot/pgsql/src/backend/executor/nodeGroup.c,v 1.12 1998/01/26 00:21:02 scrappy Exp $ * *------------------------------------------------------------------------- */ @@ -415,8 +415,11 @@ sameGroup(TupleTableSlot *oldslot, if (isNull1 == isNull2) { - if (isNull1) /* both are null, they are equal */ - continue; + /* both are null, they are _not_ equal since + * NULL is not equal to NULL (or anything). + * -- 25 Jan 1998 -- darrenk */ + if (isNull1) + return FALSE; val1 = fmgr(typoutput, attr1, gettypelem(tupdesc->attrs[att - 1]->atttypid)); |