planner, executor: inject proj below TopN and Sort if byItem contains scalarFunc (#9197)#9319

Merged

winkyao merged 1 commit intopingcap:release-2.1from XuHuaiyu:release-2.1

Feb 15, 2019

+125-128

Commits on Feb 15, 2019

planner, executor: inject proj below TopN and Sort if byItem contains scalarFunc (pingcap#9197 )
XuHuaiyu
committed