[jira] [Resolved] (CALCITE-4655) JdbcTable.scan throws NullPointerException

["Julian Hyde (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-4655?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Julian Hyde resolved CALCITE-4655.
----------------------------------
    Fix Version/s: 1.28.0
       Resolution: Fixed

Fixed in [58cbb462|https://github.com/apache/calcite/commit/58cbb462fc4df9e22c04aafed6fddb28b739150a]; thanks for the PR, [~kramerul]!

> JdbcTable.scan throws NullPointerException
> ------------------------------------------
>
>                 Key: CALCITE-4655
>                 URL: https://issues.apache.org/jira/browse/CALCITE-4655
>             Project: Calcite
>          Issue Type: Improvement
>    Affects Versions: 1.26.0, 1.27.0
>            Reporter: Ulrich Kramer
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.28.0
>
>          Time Spent: 1h
>  Remaining Estimate: 0h
>
> Calling {{JdbcTable.scan}} will result in a {{NullPointerException}} because inside {{JdbcTable.fieldClasses}}  {{protoRowType}} is null.
> This could easily be fixed by replacing
> {code:java}
>  final RelDataType rowType = requireNonNull(protoRowType, "protoRowType").apply(typeFactory);
> {code}
> with
> {code:java}
>  final RelDataType rowType = getRowType(typeFactory);
> {code}



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