planner: fix assertion failure on LogicalJoin.EqualConditions (#9066)#9264

Merged

jackysp merged 1 commit intopingcap:release-2.1from zz-jason:cherrypick/2.1-join-column-substitute

Feb 11, 2019

+87-17

Commits on Feb 11, 2019

planner: fix assertion failure on LogicalJoin.EqualConditions (pingcap#9066 )
zz-jason
committed