[jira] [Commented] (CALCITE-4382) CompileException on table with array of struct column

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

    [ https://issues.apache.org/jira/browse/CALCITE-4382?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17227587#comment-17227587 ] 

Julian Hyde commented on CALCITE-4382:
--------------------------------------

It's possible that you need to flatten.

> CompileException on table with array of struct column
> -----------------------------------------------------
>
>                 Key: CALCITE-4382
>                 URL: https://issues.apache.org/jira/browse/CALCITE-4382
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.26.0
>            Reporter: Nathan Hartwell
>            Priority: Major
>         Attachments: CalciteArrayOfStructTest.java, output.txt
>
>
> Trying to query a table like this
>  
> {code:java}
> Table brokenTableWithArrayOfStructs = new EmptyTable() {
>     @Override
>     public RelDataType getRowType(RelDataTypeFactory typeFactory) {
>         return typeFactory.builder()
>                 .add("A", typeFactory.createArrayType(typeFactory.builder().add("foo", SqlTypeName.INTEGER).build(), -1))
>                 .add("B", SqlTypeName.INTEGER)
>                 .build();
>     }
> };{code}
>  
> fails; the relevant bit appears to be
> {code:java}
> Caused by: org.codehaus.commons.compiler.CompileException: Line 5, Column 59: No applicable constructor/method found for actual parameters "java.lang.Object"; candidates are: "public static org.apache.calcite.linq4j.Enumerable org.apache.calcite.linq4j.Linq4j.asEnumerable(java.lang.Iterable)", "public static org.apache.calcite.linq4j.Enumerable org.apache.calcite.linq4j.Linq4j.asEnumerable(java.lang.Object[])", "public static org.apache.calcite.linq4j.Enumerable org.apache.calcite.linq4j.Linq4j.asEnumerable(java.util.List)", "public static org.apache.calcite.linq4j.Enumerable org.apache.calcite.linq4j.Linq4j.asEnumerable(java.util.Collection)"
> {code}
> Removing column A in the example above so that the array of structs is the only column works, as does defining column B as a map of structs. Full test case and output(including full stack trace and problematic generated code) attached.



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