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new 0af9371a96d [fix](hash join) fix column ref DCHECK failure of hash
join node block mem reuse (#28991)
0af9371a96d is described below
commit 0af9371a96dccd7ddbfcad13cffc25a46b858158
Author: TengJianPing <18241664+jackte...@users.noreply.github.com>
AuthorDate: Mon Dec 25 22:19:01 2023 +0800
[fix](hash join) fix column ref DCHECK failure of hash join node block mem
reuse (#28991)
Introduced by #28851, after evaluating build side expr, some columns in
resulting block may be referenced more than once in the same block.
e.g. coalesce(col_a, 'string') if col_a is nullable but actually contains
no null values, in this case funcition coalesce will insert a new nullable
column which references the original col_a.
---
be/src/vec/exec/join/vhash_join_node.cpp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/be/src/vec/exec/join/vhash_join_node.cpp
b/be/src/vec/exec/join/vhash_join_node.cpp
index 30f2450f458..60391716e28 100644
--- a/be/src/vec/exec/join/vhash_join_node.cpp
+++ b/be/src/vec/exec/join/vhash_join_node.cpp
@@ -692,7 +692,7 @@ Status HashJoinNode::_materialize_build_side(RuntimeState*
state) {
// data from data.
while (!eos && (!_short_circuit_for_null_in_build_side ||
!_has_null_in_build_side) &&
(!_probe_open_finish ||
!_is_hash_join_early_start_probe_eos(state))) {
- block.clear_column_data();
+ release_block_memory(block, 1);
RETURN_IF_CANCELLED(state);
{
SCOPED_TIMER(_build_get_next_timer);
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