On November 21, 2017 6:49:26 AM PST, Tom Lane wrote:
>Zakhar Shapurau writes:
>
>Presumably, we could examine the grouping sets to identify column(s)
>present in all sets, and then allow the optimization for clauses that
>reference only such columns. Or maybe I'm misreading the comment
>(but t
Zakhar Shapurau writes:
> Using GROUPING SETS with more than one set disables predicate pushdown?
It looks like this is a case that no one's gotten round to yet.
The comment in the relevant code is
* In some cases we may want to transfer a HAVING clause into WHERE. We
* cann
Hi!
First of all, thanks for the great work! PostgreSQL is amazing, and
community is super helpful.
I found an unexpected behaviour in PostgreSQL, and was advised to post
it to the performance mailing list on IRC.
Using GROUPING SETS with more than one set disables predicate pushdown?
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