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From "Michael Ho (Code Review)" <ger...@cloudera.org>
Subject [Impala-ASF-CR] [DOCS] Add several items to "known issues" page
Date Fri, 27 Jan 2017 18:44:30 GMT
Michael Ho has posted comments on this change.

Change subject: [DOCS] Add several items to "known issues" page
......................................................................


Patch Set 1:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/5809/1/docs/topics/impala_known_issues.xml
File docs/topics/impala_known_issues.xml:

PS1, Line 810: for example when Impala applied the single-node
             :           optimization for small queries.
John, sorry for the confusion. After the fix of IMPALA-4432, IR UDF will still work with single-node
optimization.

The cases with behavioral change are when the user explicitly sets disable_codegen=true in
the query options and attempts either of the followings:

- running IR UDF will get the following error message: https://github.com/apache/incubator-impala/blob/master/be/src/exprs/scalar-fn-call.cc#L127

- running a built-in or native UDF with more than 20 arguments will result in the following
error message: https://github.com/apache/incubator-impala/blob/master/be/src/exprs/scalar-fn-call.cc#L137


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Gerrit-MessageType: comment
Gerrit-Change-Id: Ibeed92e8f6603b858622b1d397d1f5cad810f4cf
Gerrit-PatchSet: 1
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: John Russell <jrussell@cloudera.com>
Gerrit-Reviewer: Michael Brown <mikeb@cloudera.com>
Gerrit-Reviewer: Michael Ho
Gerrit-Reviewer: Michael Ho <kwho@cloudera.com>
Gerrit-Reviewer: Sailesh Mukil <sailesh@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <tarmstrong@cloudera.com>
Gerrit-HasComments: Yes

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