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Posted to issues-all@impala.apache.org by "Fang-Yu Rao (Jira)" <ji...@apache.org> on 2022/04/11 19:22:00 UTC
[jira] [Created] (IMPALA-11237) Consider preserving the behavior of concat_ws() before IMPALA-8891
Fang-Yu Rao created IMPALA-11237:
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Summary: Consider preserving the behavior of concat_ws() before IMPALA-8891
Key: IMPALA-11237
URL: https://issues.apache.org/jira/browse/IMPALA-11237
Project: IMPALA
Issue Type: Test
Reporter: Fang-Yu Rao
Assignee: Fang-Yu Rao
After IMPALA-8891, Impala changed its behavior with respect to concat_ws(). Specifically, after IMPALA-8891, concat_ws() does not return NULL if any argument passed to concat_ws() is NULL, whereas concat_ws() would return NULL if any argument is NULL without IMPALA-8891.
Some users may still rely on the pre-IMPALA-8891 behavior of Impala. It may make sense to preserve the pre-IMPALA-8891 behavior by introducing a new query option.
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