executor: push some flags down to coprocessor (#6149)
executor: push some flags down to coprocessor (#6149)


wusphinx/tidb,ngaut/tidb,cosmtrek/tidb,ngaut/tidb,ming-relax/tidb,tiancaiamao/tidb,kyle-wang/tidb,coocood/tidb,ngaut/tidb,Nify/tidb,coocood/tidb,kyle-wang/tidb,ngaut/tidb,c4pt0r/tidb,wusphinx/tidb,pingcap/tidb,qiuyesuifeng/tidb,ming-relax/tidb,EvilMcJerkface/tidb,XuHuaiyu/tidb,ngaut/tidb,Cofyc/tidb,CodeRushing/tidb,c4pt0r/tidb,kyle-wang/tidb,pingcap/tidb,mccxj/tidb,CodeRushing/tidb,qiuyesuifeng/tidb,c4pt0r/tidb,c4pt0r/tidb,pingcap/tidb,Nify/tidb,kyle-wang/tidb,c4pt0r/tidb,kyle-wang/tidb,pingcap/tidb,pingcap/tidb,mccxj/tidb,ngaut/tidb,pingcap/tidb,kyle-wang/tidb,Cofyc/tidb,XuHuaiyu/tidb,tiancaiamao/tidb,cosmtrek/tidb,EvilMcJerkface/tidb,c4pt0r/tidb