Hi,
I'm trying to understand RewriteCorrelatedScalarSubquery optimization and
how extractCorrelatedScalarSubqueries [1] works. I don't understand how
"The expression is rewritten and returned." is done. How is the expression
rewritten?
Since it's private it's not even possible to write tests and
Hi,
Just been bitten by finding out that there are two ScalarSubquery
expressions, one is a SubqueryExpression [1] and another is a
ExecSubqueryExpression
[2].
Could we have the ExecSubqueryExpression subclass called ScalarSubqueryExec
to follow the naming convention in logical and physical plans
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Le ven. 25 mai 2018 à 23:11, Felix Cheung a
écrit :
> This is the fix
>
> https://github.com/apache/spark/commit/f27a035daf705766d3445e5c6a99867c11c552b0#diff-e1e1d3d40573127e9ee0480caf1283d6
>
> I don’t have the email though.
>
> --
> *From:* Hossein
> *
