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-rw-r--r--src/backend/catalog/partition.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/src/backend/catalog/partition.c b/src/backend/catalog/partition.c
index b434c384c97..f9fd1366e26 100644
--- a/src/backend/catalog/partition.c
+++ b/src/backend/catalog/partition.c
@@ -1729,10 +1729,14 @@ get_partition_for_tuple(PartitionDispatch *pd,
errmsg("range partition key of row contains null")));
}
- if (partdesc->boundinfo->has_null && isnull[0])
- /* Tuple maps to the null-accepting list partition */
+ /*
+ * A null partition key is only acceptable if null-accepting list
+ * partition exists.
+ */
+ cur_index = -1;
+ if (isnull[0] && partdesc->boundinfo->has_null)
cur_index = partdesc->boundinfo->null_index;
- else
+ else if (!isnull[0])
{
/* Else bsearch in partdesc->boundinfo */
bool equal = false;