diff options
Diffstat (limited to 'src/backend/executor')
| -rw-r--r-- | src/backend/executor/execExprInterp.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/backend/executor/execExprInterp.c b/src/backend/executor/execExprInterp.c index 1470edc0aba..827c65cc852 100644 --- a/src/backend/executor/execExprInterp.c +++ b/src/backend/executor/execExprInterp.c @@ -4250,9 +4250,9 @@ ExecEvalPreOrderedDistinctSingle(AggState *aggstate, AggStatePerTrans pertrans) if (!pertrans->haslast || pertrans->lastisnull != isnull || - !DatumGetBool(FunctionCall2Coll(&pertrans->equalfnOne, - pertrans->aggCollation, - pertrans->lastdatum, value))) + (!isnull && !DatumGetBool(FunctionCall2Coll(&pertrans->equalfnOne, + pertrans->aggCollation, + pertrans->lastdatum, value)))) { if (pertrans->haslast && !pertrans->inputtypeByVal) pfree(DatumGetPointer(pertrans->lastdatum)); |