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Posted to issues@calcite.apache.org by "Ulrich Kramer (Jira)" <ji...@apache.org> on 2021/06/18 08:00:29 UTC

[jira] [Created] (CALCITE-4655) NullPointerException in JdbcTable.scan

Ulrich Kramer created CALCITE-4655:
--------------------------------------

             Summary: NullPointerException in JdbcTable.scan
                 Key: CALCITE-4655
                 URL: https://issues.apache.org/jira/browse/CALCITE-4655
             Project: Calcite
          Issue Type: Improvement
    Affects Versions: 1.27.0, 1.26.0
            Reporter: Ulrich Kramer
             Fix For: next


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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