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From "Matthew Jacobs (Code Review)" <>
Subject [Impala-ASF-CR] IMPALA-3002/1473: Cardinality observability cleanup
Date Thu, 13 Oct 2016 17:16:48 GMT
Matthew Jacobs has posted comments on this change.

Change subject: IMPALA-3002/1473: Cardinality observability cleanup

Patch Set 2:

Commit Message:

PS2, Line 7: 1473
nit: can you separate this into separate IMPALA-1473, sometimes ppl are grepping for a full
JIRA reference.
File shell/

PS2, Line 145:     if node.is_broadcast:
I think you need to update which duplicates this code (unfortunately) as
well. Can you add a comment in the fn header that copies this and changes
should be made in both places.

I actually thought the test case you have would have exercised the fix but if you hadn't changed
the impala_beeswax location then maybe not. It may need to be exercised with a different query.
File tests/query_test/

PS2, Line 20: TestObservability
A bit odd but I don't see a great home for this test in an existing class. Maybe someone else
will have a suggestion.

PS2, Line 25: test_merge_exchange_with_limit

PS2, Line 26: IMPALA-1473 
I think this tests both 1473 and IMPALA-3002. Can you verify that with a print in the
code you changed, and update this message if that's the case?

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Gerrit-MessageType: comment
Gerrit-Change-Id: I386719370386c9cff09b8b35d15dc712dc6480aa
Gerrit-PatchSet: 2
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Thomas Tauber-Marshall <>
Gerrit-Reviewer: Matthew Jacobs <>
Gerrit-Reviewer: Thomas Tauber-Marshall <>
Gerrit-HasComments: Yes

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