executor: fix a bug that the generated column doesn't handle bad null value #20193
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ti-srebot
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Signed-off-by: ti-srebot <ti-srebot@pingcap.com>
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cherry pick to release-4.0 in PR #20216 |
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Signed-off-by: wjhuang2016 huangwenjun1997@gmail.com
What problem does this PR solve?
Issue Number: close #17767
Problem Summary:
The generated column doesn't handle bad null value.
What is changed and how it works?
return zero.
Related changes
Check List
Tests
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