diff options
Diffstat (limited to 'src/backend/executor/nodeAppend.c')
| -rw-r--r-- | src/backend/executor/nodeAppend.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/backend/executor/nodeAppend.c b/src/backend/executor/nodeAppend.c index 5ce4fb43e1a..86a68d30201 100644 --- a/src/backend/executor/nodeAppend.c +++ b/src/backend/executor/nodeAppend.c @@ -171,6 +171,7 @@ ExecInitAppend(Append *node, EState *estate, int eflags) { /* We'll need to initialize all subplans */ nplans = list_length(node->appendplans); + Assert(nplans > 0); validsubplans = bms_add_range(NULL, 0, nplans - 1); } @@ -179,7 +180,10 @@ ExecInitAppend(Append *node, EState *estate, int eflags) * immediately, preventing later calls to ExecFindMatchingSubPlans. */ if (!prunestate->do_exec_prune) + { + Assert(nplans > 0); appendstate->as_valid_subplans = bms_add_range(NULL, 0, nplans - 1); + } } else { @@ -189,6 +193,7 @@ ExecInitAppend(Append *node, EState *estate, int eflags) * When run-time partition pruning is not enabled we can just mark all * subplans as valid; they must also all be initialized. */ + Assert(nplans > 0); appendstate->as_valid_subplans = validsubplans = bms_add_range(NULL, 0, nplans - 1); appendstate->as_prune_state = NULL; |