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From "Jacques Nadeau (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-4018) Schema Change: Screen Operator should filter behaviors unsupported by particular clients
Date Tue, 03 Nov 2015 17:07:27 GMT
Jacques Nadeau created DRILL-4018:
-------------------------------------

             Summary: Schema Change: Screen Operator should filter behaviors unsupported by
particular clients
                 Key: DRILL-4018
                 URL: https://issues.apache.org/jira/browse/DRILL-4018
             Project: Apache Drill
          Issue Type: Improvement
          Components: Execution - Relational Operators
            Reporter: Jacques Nadeau
            Assignee: amit hadke


In some situations, a client may not be able to accommodate schema changes. We need to update
the Screen operator to have configurable behavior according to what a client supports. One
example is schema change. While Drill supports schema changes, many clients can't deal with
these. We need to come with a set of schema change criteria that map to coercion, warning
or error and then implement that filtering within the screen operator.



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