[
https://issues.apache.org/jira/browse/CALCITE-2620?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jesus Camacho Rodriguez resolved CALCITE-2620.
----------------------------------------------
Resolution: Fixed
Assignee: pengzhiwei (was: Julian Hyde)
Fix Version/s: 1.18.0
Fixed in
[5b16e23|http://git-wip-us.apache.org/repos/asf/calcite/commit/5b16e23]. Thanks
[~pzw2018]!
> Simplify "coalesce(null,x)" to "x"
> ----------------------------------
>
> Key: CALCITE-2620
> URL: https://issues.apache.org/jira/browse/CALCITE-2620
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Affects Versions: 1.18.0
> Reporter: pengzhiwei
> Assignee: pengzhiwei
> Priority: Major
> Fix For: 1.18.0
>
>
> "coalesce(x0,x1,.....)" can be simplified if any of "xi" is null literal.
> e.g. "coalesce(null,x)" can simplify to "x", "coalesce(x,null,y)" can
> simplify to "coalesce(x,y)"
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
