Stamatis,
I left a comment on the PR. Overall it looks great to me although I wonder
if we want to resolve CALCITE-2582 first to avoid disabling the subquery
tests. Thanks!
--
Michael Mior
mm...@apache.org
Le jeu. 3 janv. 2019 à 11:09, Stamatis Zampetakis a
écrit :
> Hello,
>
> Can somebody
Hello,
Can somebody have a look in the PR.
Enriching join operators with RelCollation information can have a big
impact in performance of some queries since it allows dropping redundant
sort operators which are in general costly to evaluate.
Thanks in advance,
Stamatis
JIRA:
