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Some filters can be pushed down through Aggregate operator, for example:
select*from t group by a having a >1;
Since the HAVING predicate a > 1 is applied on the group item a, it's possible to rewrite the query into select * from t where a > 1 group by a, which is much more efficient.
The text was updated successfully, but these errors were encountered:
Some filters can be pushed down through
Aggregate
operator, for example:Since the
HAVING
predicatea > 1
is applied on the group itema
, it's possible to rewrite the query intoselect * from t where a > 1 group by a
, which is much more efficient.The text was updated successfully, but these errors were encountered: