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new 1f1bdaa9c3 [bugfix] fix coredump of left anti join (#10591)
1f1bdaa9c3 is described below
commit 1f1bdaa9c3c962de00734e34d4674aa99c8e4780
Author: TengJianPing <[email protected]>
AuthorDate: Mon Jul 4 22:29:41 2022 +0800
[bugfix] fix coredump of left anti join (#10591)
---
be/src/vec/exec/join/vhash_join_node.cpp | 19 +++++++++++++++----
1 file changed, 15 insertions(+), 4 deletions(-)
diff --git a/be/src/vec/exec/join/vhash_join_node.cpp
b/be/src/vec/exec/join/vhash_join_node.cpp
index 4c75eb99bd..f1b8f5b197 100644
--- a/be/src/vec/exec/join/vhash_join_node.cpp
+++ b/be/src/vec/exec/join/vhash_join_node.cpp
@@ -222,10 +222,21 @@ struct ProcessHashTableProbe {
_build_block_rows[j]);
}
} else {
- auto& column =
*_build_blocks[_build_block_offsets[j]]
- .get_by_position(i)
- .column;
- mcol[i + column_offset]->insert_from(column,
_build_block_rows[j]);
+ if (_build_block_offsets[j] == -1) {
+ // the only case to reach here:
+ // 1. left anti join with other conjuncts,
and
+ // 2. equal conjuncts does not match
+ // since nullptr is emplaced back to
visited_map,
+ // the output value of the build side does
not matter,
+ // just insert default value
+ mcol[i + column_offset]->insert_default();
+ } else {
+ auto& column =
*_build_blocks[_build_block_offsets[j]]
+ .get_by_position(i)
+ .column;
+ mcol[i +
column_offset]->insert_from(column,
+
_build_block_rows[j]);
+ }
}
}
} else {
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