diff options
Diffstat (limited to 'src/backend/executor/nodeHash.c')
| -rw-r--r-- | src/backend/executor/nodeHash.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/backend/executor/nodeHash.c b/src/backend/executor/nodeHash.c index 9ea00ed2371..6a476bac59e 100644 --- a/src/backend/executor/nodeHash.c +++ b/src/backend/executor/nodeHash.c @@ -7,7 +7,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/executor/nodeHash.c,v 1.3 1996/07/26 20:03:21 scrappy Exp $ + * $Header: /cvsroot/pgsql/src/backend/executor/nodeHash.c,v 1.4 1996/08/19 01:52:36 scrappy Exp $ * *------------------------------------------------------------------------- */ @@ -527,6 +527,16 @@ ExecHashGetBucket(HashJoinTable hashtable, */ keyval = ExecEvalVar(hashkey, econtext, &isNull); + /* + * keyval could be null, so we better point it to something + * valid before trying to run hashFunc on it. --djm 8/17/96 + */ + if(isNull) { + execConstByVal = 0; + execConstLen = 0; + keyval = (Datum)""; + } + /* ------------------ * compute the hash function * ------------------ |