util/codec: unify decimal codec with tikv. (#1268)
util/codec: unify decimal codec with tikv. (#1268)
JinheLin/tidb,tiancaiamao/tidb,ngaut/tidb,coocood/tidb,zs634134578/tidb,spongedu/tidb,Cofyc/tidb,liyu4/tidb,Cofyc/tidb,coocood/tidb,andelf/tidb,ming-relax/tidb,8cbx/tidb,qhsong/tidb,qiuyesuifeng/tidb,kyle-wang/tidb,astaxie/tidb,EvilMcJerkface/tidb,EvilMcJerkface/tidb,gaocegege/tidb,ming-relax/tidb,pingcap/tidb,silenceper/tidb,ngaut/tidb,yuanwhy/tidb,wusphinx/tidb,silentred/tidb,ngaut/tidb,c4pt0r/tidb,CodeRushing/tidb,yangwenmai/tidb,c4pt0r/tidb,pingcap/tidb,tiancaiamao/tidb,pingcap/tidb,gaocegege/tidb,pingcap/tidb,kyle-wang/tidb,mccxj/tidb,ngaut/tidb,simon-xia/tidb,JinheLin/tidb,myrice/tidb,cosmtrek/tidb,anywhy/tidb,louishust/tidb,astaxie/tidb,ngaut/tidb,qhsong/tidb,CodeRushing/tidb,kyle-wang/tidb,qiuyesuifeng/tidb,c4pt0r/tidb,zs634134578/tidb,c4pt0r/tidb,wusphinx/tidb,kyle-wang/tidb,8cbx/tidb,kyle-wang/tidb,pingcap/tidb,andelf/tidb,mccxj/tidb,liyu4/tidb,XuHuaiyu/tidb,ngaut/tidb,spongedu/tidb,cosmtrek/tidb,c4pt0r/tidb,yangwenmai/tidb,silenceper/tidb,ueizhou/tidb,kyle-wang/tidb,Nify/tidb,pingcap/tidb,zimulala/tidb,yuanwhy/tidb,silentred/tidb,c4pt0r/tidb,myrice/tidb,XuHuaiyu/tidb,zimulala/tidb,Nify/tidb,louishust/tidb,simon-xia/tidb,anywhy/tidb,ueizhou/tidb