[
https://issues.apache.org/jira/browse/CALCITE-2929?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Kevin Risden resolved CALCITE-2929.
-----------------------------------
Resolution: Fixed
merged in commit a648f9c12309cc253628930b0cab98591caa66ab
> Simplification of IS NULL checks are incorrectly assuming that CAST-s are
> possible
> ----------------------------------------------------------------------------------
>
> Key: CALCITE-2929
> URL: https://issues.apache.org/jira/browse/CALCITE-2929
> Project: Calcite
> Issue Type: Bug
> Affects Versions: 1.18.0
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.19.0
>
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
> Example:
> {code}
> with ax(s) as (values ('xxx'),(cast(null as character varying)))
> select cast(s as int) IS NULL from ax;
> {code}
> returns a result set; which evaluates
> however 'xxx' is not a valid integer; so an error should be recieved instead
> Another class of almost the same issue:
> {code}
> select cast('xxx' as int) IS NULL;
> {code}
> is also problematic; in that case the not nullability is deduced from the
> fact that the literal's type is not nullable
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
