Push down limit-distinct through left/right outer join or cross join. such as select t1.c1 from t1 left join t2 on t1.c1 = t2.c1 order by t1.c1 limit 1;
Push down limit-distinct through left/right outer join or cross join. such as select t1.c1 from t1 left join t2 on t1.c1 = t2.c1 order by t1.c1 limit 1;