terrymanu commented on issue #4861: two tables left join with different routing rules are not supported URL: https://github.com/apache/incubator-shardingsphere/issues/4861#issuecomment-604805866 > > 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' > ``` > What is your original SQL, does the original SQL include `and b.col = '123'`? > t does not affect the function, but talk about whether it is possible to optimize it What is t?
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