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From "Namit Jain (Created) (JIRA)" <>
Subject [jira] [Created] (HIVE-2668) Minor cleanup to HIVE-2642
Date Wed, 21 Dec 2011 17:21:30 GMT
Minor cleanup to HIVE-2642

                 Key: HIVE-2668
             Project: Hive
          Issue Type: Improvement
            Reporter: Namit Jain
            Assignee: He Yongqiang

ql/src/java/org/apache/hadoop/hive/ql/optimizer/ can you add some
comments here ?

This is not really the top operators - this contains the list of intermediate tables also.
This code is difficult to debug later on, so more comments would be helpful

Look at union22.q.out.

map-join followed by union, an extra stage is introduced.
We dont have to optimize this - just wanted to make sure it is intentional.

1 general comment about the new test union26.q -

Reduce the test output, I mean, you dont need to load all 500 rows for this test.
It makes the test output really difficult to review.

ql/src/java/org/apache/hadoop/hive/ql/optimizer/ remove this comment

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