delete table options avoid error when has alias
delete table options avoid error when has alias

akira-cn/thinkjs,maxzhang/thinkjs,75team/thinkjs,maxzhang/thinkjs,Qihoo360/thinkjs,thinkjs/thinkjs,75team/thinkjs,akira-cn/thinkjs,maxzhang/thinkjs,akira-cn/thinkjs,snadn/thinkjs,75team/thinkjs