expression: fix cast json to decimal bug. (#8030)#8109

Merged

zz-jason merged 1 commit intopingcap:release-2.1from crazycs520:json-cast-decimal-2.1

Oct 31, 2018

+97-4

Commits on Oct 30, 2018

expression: fix cast json to decimal bug. (pingcap#8030 )
crazycs520
committed