ddl: fix alter table charset bug that change blob column type to text (#10477)#10745

Merged

zimulala merged 1 commit intopingcap:release-2.1from crazycs520:10477-2.1

Jun 10, 2019

+13-1

Commits on Jun 10, 2019

ddl: fix alter table charset bug that change blob column type to text (pingcap#10477 )
crazycs520
committed