[opt](optimizer) Remove unused code to unify code #38918
Merged
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Proposed changes
Now, Agg's child predicates will not spread to agg.
For example:
select a, sum(b)
from (
select a,b from t where a = 1 and b = 2
) t
group by a
a = 1
in scan can be propagated toa
of agg.But
b = 2
in scan can not be propagated tosum(b)
of agg.Issue Number: #38905