add pre-requirement
add pre-requirement

liyu4/tidb,louishust/tidb,ngaut/tidb,kyle-wang/tidb,wusphinx/tidb,8cbx/tidb,kyle-wang/tidb,netroby/tidb,c4pt0r/tidb,yuanwhy/tidb,mccxj/tidb,zimulala/tidb,tiancaiamao/tidb,coocood/tidb,pingcap/tidb,gaocegege/tidb,pingcap/tidb,ngaut/tidb,c4pt0r/tidb,silenceper/tidb,kyle-wang/tidb,JinheLin/tidb,Nify/tidb,pingcap/tidb,c4pt0r/tidb,cosmtrek/tidb,kyle-wang/tidb,andelf/tidb,XuHuaiyu/tidb,liyu4/tidb,qhsong/tidb,zs634134578/tidb,myrice/tidb,silenceper/tidb,XuHuaiyu/tidb,anywhy/tidb,Cofyc/tidb,ming-relax/tidb,yangwenmai/tidb,astaxie/tidb,tiancaiamao/tidb,pingcap/tidb,mccxj/tidb,pingcap/tidb,Nify/tidb,c4pt0r/tidb,wusphinx/tidb,ming-relax/tidb,astaxie/tidb,yangwenmai/tidb,ngaut/tidb,silentred/tidb,netroby/tidb,zs634134578/tidb,spongedu/tidb,ngaut/tidb,coocood/tidb,ngaut/tidb,kyle-wang/tidb,CodeRushing/tidb,JinheLin/tidb,zimulala/tidb,simon-xia/tidb,EvilMcJerkface/tidb,Cofyc/tidb,qhsong/tidb,c4pt0r/tidb,ngaut/tidb,8cbx/tidb,gaocegege/tidb,cosmtrek/tidb,ueizhou/tidb,louishust/tidb,qiuyesuifeng/tidb,andelf/tidb,c4pt0r/tidb,ueizhou/tidb,silentred/tidb,qiuyesuifeng/tidb,pingcap/tidb,CodeRushing/tidb,anywhy/tidb,spongedu/tidb,yuanwhy/tidb,myrice/tidb,EvilMcJerkface/tidb,kyle-wang/tidb,simon-xia/tidb