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From "Jonathan Chang (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-2592) ConstantOI doesn't always propagate to UDAF
Date Thu, 17 Nov 2011 21:45:57 GMT
ConstantOI doesn't always propagate to UDAF
-------------------------------------------

                 Key: HIVE-2592
                 URL: https://issues.apache.org/jira/browse/HIVE-2592
             Project: Hive
          Issue Type: Bug
            Reporter: Jonathan Chang
            Assignee: Jonathan Chang


Depending on the query plan, a UDAF may not actually get a constant OI.  E.g.,

set hive.map.aggr=false;
SELECT percentile_approx(cast(substr(src.value,5) AS double), 0.5) FROM src;

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