Csaba Ringhofer has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/8447 )

Change subject: IMPALA-2181: Add query option levels for display
......................................................................


Patch Set 8:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/8447/8/be/src/service/impala-server.cc
File be/src/service/impala-server.cc:

http://gerrit.cloudera.org:8080/#/c/8447/8/be/src/service/impala-server.cc@1215
PS8, Line 1215:   string_map["support_start_over"] = "false";
This may not be related to this change, but it would be good to think a bit 
about support_start_over option. Unlike other options, it is not an integer, 
and it should not be changed. It is read by Hue ccording to 
https://www.cloudera.com/documentation/enterprise/5-4-x/topics/impala_support_start_over.html

I do not know how Hue accesses query options, but if via the output of "set;" 
hiding it by default may actually change the behavior of Hue. Even if this is 
not an issue, it would be probably better to separate this option clearly e.g. 
by giving it a separate level like "capability" and treat these query options 
as read only.

( this comment added support_start_over a long time ago:
https://github.com/cloudera/Impala/commit/94a5ed487e04b7d2c9bf6bee399f0f464f289211b
 )



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I75720d0d454527e1a0ed19bb43cf9e4f018ce1d1
Gerrit-Change-Number: 8447
Gerrit-PatchSet: 8
Gerrit-Owner: Gabor Kaszab <gaborkas...@cloudera.com>
Gerrit-Reviewer: Attila Jeges <atti...@cloudera.com>
Gerrit-Reviewer: Csaba Ringhofer <csringho...@cloudera.com>
Gerrit-Reviewer: Dan Hecht <dhe...@cloudera.com>
Gerrit-Reviewer: Gabor Kaszab <gaborkas...@cloudera.com>
Gerrit-Reviewer: Lars Volker <l...@cloudera.com>
Gerrit-Reviewer: Laszlo Gaal <laszlo.g...@cloudera.com>
Gerrit-Reviewer: Philip Zeyliger <phi...@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com>
Gerrit-Reviewer: Zoltan Borok-Nagy <borokna...@cloudera.com>
Gerrit-Comment-Date: Tue, 07 Nov 2017 23:07:55 +0000
Gerrit-HasComments: Yes

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