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From "Arina Ielchiieva (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-5523) Revert if condition in UnionAllRecordBatch changed in DRILL-5419
Date Thu, 18 May 2017 10:50:04 GMT
Arina Ielchiieva created DRILL-5523:
---------------------------------------

             Summary: Revert if condition in UnionAllRecordBatch changed in DRILL-5419
                 Key: DRILL-5523
                 URL: https://issues.apache.org/jira/browse/DRILL-5523
             Project: Apache Drill
          Issue Type: Bug
    Affects Versions: 1.11.0
            Reporter: Arina Ielchiieva
            Assignee: Arina Ielchiieva
             Fix For: 1.11.0


If condition in UnionAllRecordBatch which was changed to correct one in DRILL-5419 but this
change caused the regression (DRILL-5521).
The root cause is not in change itself but rather in missing indication of child column in
map types when it is null. There is a big project upcoming to re-working json reader implementation,
including map types (DRILL-4824) which will fix the problem.

So far reverting change to previous one so users won't see the regression till DRILL-4824
is merged.



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