fantacy2001 edited a comment on issue #4861: two tables left join with different routing rules are not supported URL: https://github.com/apache/incubator-shardingsphere/issues/4861#issuecomment-604801451 > Can you use SQL to explain your expected behaviour? shardingsphere's route is no problem. i mean a convention is : ```sql select a.*,b.* from a left join b on a.col = b.col where a.col = '123' ``` but not : ```sql select a.*,b.* from a left join b on a.col = b.col where a.col = '123' and b.col = '123' ``` t does not affect the function, but talk about whether it is possible to optimize it
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