executor: using ToHashKey to check equality of decimal when count(distinct) (#9901)#9931

Merged

zimulala merged 2 commits intopingcap:release-2.1from XuHuaiyu:cherry-pick-2.1

Mar 28, 2019

+34-22

Commits on Mar 28, 2019

executor: using ToHashKey to check equality of decimal when count(distinct) (pingcap#9901 )
XuHuaiyu
committed
Merge branch 'release-2.1' into cherry-pick-2.1
XuHuaiyu
authored