[
https://issues.apache.org/jira/browse/CALCITE-3627?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Stamatis Zampetakis updated CALCITE-3627:
-----------------------------------------
Fix Version/s: 1.30.0
> Incorrect null semantic for ROW function
> ----------------------------------------
>
> Key: CALCITE-3627
> URL: https://issues.apache.org/jira/browse/CALCITE-3627
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: Feng Zhu
> Assignee: Feng Zhu
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.30.0
>
> Time Spent: 6h
> Remaining Estimate: 0h
>
> In CALCITE-2464, an in-depth discussion on nullability of structured type has
> been conducted.
> According to SQL standards, a record's value (with structure type) is
> considered null if and only if all of its fields are null.
> Based on that, the *ROW* function's return type can be nullable.
> Moreover, current implementor for ROW function's _*NullPolicy*_
> (_NullPolicy.ANY_) contradicts its runtime behavior.
> {code:java}
> Query:
> select ROW(1, cast(null as int))
> Result:
> {1, null}{code}
> However, according to the NullPolicy, the result should be null.
--
This message was sent by Atlassian Jira
(v8.20.1#820001)
