executor: fix a bug that the generated column does ... (#20193)#20216

Merged

zz-jason merged 3 commits intopingcap:release-4.0from ti-srebot:release-4.0-47a182f76a21

Oct 3, 2020

+24

Commits on Sep 25, 2020

cherry pick pingcap#20193 to release-4.0

wjhuang2016
authored and
ti-srebot
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Commits on Oct 3, 2020