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Posted to dev@drill.apache.org by "Steven Phillips (JIRA)" <ji...@apache.org> on 2015/07/10 03:16:05 UTC

[jira] [Created] (DRILL-3487) MaterializedField equality doesn't check if nested fields are equal

Steven Phillips created DRILL-3487:
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             Summary: MaterializedField equality doesn't check if nested fields are equal
                 Key: DRILL-3487
                 URL: https://issues.apache.org/jira/browse/DRILL-3487
             Project: Apache Drill
          Issue Type: Bug
          Components: Metadata
            Reporter: Steven Phillips
            Assignee: Hanifi Gunes


In several places, we use BatchSchema.equals() to determine if two schemas are the same. A BatchSchema is a set of MaterializedField objects. But ever since DRILL-1872, the child fields are no longer checked.

What this means, essentially, is that BatchSchema.equals() is not valid for determining schema changes if the batch contains any nested fields.



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