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Posted to dev@calcite.apache.org by "Will Yu (JIRA)" <ji...@apache.org> on 2019/03/30 22:26:00 UTC

[jira] [Created] (CALCITE-2963) RelStructuredTypeFlattener crashes when accessing nested field in STRUCTURED SqlType

Will Yu created CALCITE-2963:
--------------------------------

             Summary: RelStructuredTypeFlattener crashes when accessing nested field in STRUCTURED SqlType
                 Key: CALCITE-2963
                 URL: https://issues.apache.org/jira/browse/CALCITE-2963
             Project: Calcite
          Issue Type: Bug
          Components: core
    Affects Versions: 1.19.0
            Reporter: Will Yu
            Assignee: Will Yu


When accessing nested field in a STRUCTURED SqlType, sometimes RelStructuredTypeFlattener will crash with java.lang.IndexOutOfBoundsException

The test case is in SqlToRelConverterTest.java

@Test
public void testNestedColumnCrash() {
 final String sql =
 "select mailing_address.zip from sales.emp_address where home_address.city = 'abc'";
 sql(sql).ok();
}

 

The root cause is that when generate new RelNode for old RelNode, we did not consider whether the flattened field list needs null indicator. 

 



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