[DISCUSS] Optimization for Sharing Parser with Antlr Visitor

Hi folks, It is not common practice and prone to low performance that `ExtractorEngine` and `FillerEngine` are used to get final SQL parsed result based on AST generated by ANTLR at present. Upon investigation, we would like to replace them with ANTLR visitor. It is scheduled as a

Re: [ANNOUNCE] New committer: Xiaofeng Jiang

Congratulations! -- Zhang Yonglun Apache ShardingSphere avalon566 于2020年1月8日周三 下午10:05写道： > Congratulations! > > > > YangWen Ou(avalon566) > Apache ShardingSphere > On 1/8/2020 14:02，Juan Pan wrote： > Hi everyone, > > TheProjectManagementCommittee(PMC)forApache ShardingSphere hasinvited >

Re:Re: [ANNOUNCE] New committer: Xiaofeng Jiang

Congratulations! At 2020-01-08 15:14:38, "qi wang" wrote: >Congratulations! > > >— >Qi Wang (wqzwh) >Apache ShardingSphere > >sunbufu 于2020年1月8日周三 下午3:11写道： > >> Congratulations! >> >> >> — >> Haisheng Sun (sunbufu) >> Apache ShardingSphere >> >> >> On 01/8/2020 14:42，zhaojun