Github user HeartSaVioR commented on the issue:
https://github.com/apache/storm/pull/1714
Added full of scalar function tests which Calcite provides. Calcite 1.9.0
has some bugs so not all functions are working well, but it can be fixed from
Calcite side.
(I left comments to test codes about bugs I found.)
Once we track and document the bugs to our doc. page, I think it would be
OK.
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