[jira] [Closed] (CALCITE-4145) Exception when query from UDF field with structured type

["Andrei Sereda (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-4145?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrei Sereda closed CALCITE-4145.
----------------------------------

Released as part of 1.25 ([68b02dfd4af15bc|https://github.com/apache/calcite/commit/68b02dfd4af15bc94a91a0cd2a30655d04439555])

> Exception when query from UDF field with structured type
> --------------------------------------------------------
>
>                 Key: CALCITE-4145
>                 URL: https://issues.apache.org/jira/browse/CALCITE-4145
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.23.0, 1.24.0
>            Reporter: Danny Chen
>            Assignee: Danny Chen
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.25.0
>
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> Check this sql in {{SqlToRelConverterTest}}
> {code:java}
> @Test void testUdfWithStructuredReturnType() {
>     final String sql = "SELECT deptno, tmp.r.not_null_field, tmp.r.nullable_field FROM\n"
>         + "(SELECT deptno, ROW_FUNC() AS r from dept)tmp";
>     sql(sql).ok();
>   }
> {code}
> {{ArrayIndexOutOfBoundsException}} throws because the nested field got a -1 index when querying the field by simple name.
> To solve the problem, for a nested field, return its parent field's monotonicity.



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