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Posted to issues@calcite.apache.org by "Julian Hyde (Jira)" <ji...@apache.org> on 2020/11/02 22:44:00 UTC

[jira] [Commented] (CALCITE-4345) SUM CASE WHEN xxx THEN 1 without "ELSE" throws NPE in AggregateCaseToFilterRule

    [ https://issues.apache.org/jira/browse/CALCITE-4345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17224999#comment-17224999 ] 

Julian Hyde commented on CALCITE-4345:
--------------------------------------

Assigning to myself for final review.

> SUM CASE WHEN xxx THEN 1 without "ELSE" throws NPE in AggregateCaseToFilterRule
> -------------------------------------------------------------------------------
>
>                 Key: CALCITE-4345
>                 URL: https://issues.apache.org/jira/browse/CALCITE-4345
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>            Reporter: Jiatao Tao
>            Assignee: Julian Hyde
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.27.0
>
>         Attachments: image-2020-10-19-16-59-44-900.png
>
>          Time Spent: 4h
>  Remaining Estimate: 0h
>
> Add a test in CsvTest:
>  
> {code:java}
> @Test void testSumCaseWhenWithoutElse() throws SQLException {
>   sql("model", "select sum( CASE WHEN empno=10 THEN 1 END ) from EMPS").ok();
> }
> {code}
> Will throw NPE
>  



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