Todd Lipcon has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/10543 )

Change subject: IMPALA-6119: Fix issue with multiple partitions sharing same 
location
......................................................................


Patch Set 20:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/10543/20//COMMIT_MSG
Commit Message:

http://gerrit.cloudera.org:8080/#/c/10543/20//COMMIT_MSG@19
PS20, Line 19: For managed tables it's no longer allowed to drop a partition 
that
             : shares it's location with other partitions. In this case an 
error is
             : displayed to the user.
what was the previous behavior here? it would drop and remove the files, and 
then the user would need to invalidate/refresh to ensure that the other 
partition starts reflecting the change instead of giving FileNotFoundErrors?

If the user ends up in a state with multiple partitions at the same location, 
what's the recommended way to resolve it? First alter one partition to point 
somewhere else?



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I2a54bc8224bcefe65b83de2df58bb84629f2aa4a
Gerrit-Change-Number: 10543
Gerrit-PatchSet: 20
Gerrit-Owner: Gabor Kaszab <gaborkas...@cloudera.com>
Gerrit-Reviewer: Bharath Vissapragada <bhara...@cloudera.com>
Gerrit-Reviewer: Gabor Kaszab <gaborkas...@cloudera.com>
Gerrit-Reviewer: Michael Brown <mi...@cloudera.com>
Gerrit-Reviewer: Sailesh Mukil <sail...@cloudera.com>
Gerrit-Reviewer: Todd Lipcon <t...@apache.org>
Gerrit-Reviewer: Vuk Ercegovac <vercego...@cloudera.com>
Gerrit-Reviewer: Zoltan Borok-Nagy <borokna...@cloudera.com>
Gerrit-Comment-Date: Mon, 16 Jul 2018 23:29:04 +0000
Gerrit-HasComments: Yes

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