expression: fix runtime error integer divide by zero (#19398)#19445

Merged

ti-srebot merged 4 commits intopingcap:release-4.0from ti-srebot:release-4.0-c4a898e5ad3d

Sep 1, 2020

+52-4

Commits on Aug 25, 2020

cherry pick pingcap#19398 to release-4.0

xiongjiwei
authored and
ti-srebot
committed

Commits on Sep 1, 2020