GitHub user gatorsmile opened a pull request:
https://github.com/apache/spark/pull/12801
[SPARK-15026] [SQL] Disallow Dropping Multi Partitions By a Single Alter
Table DDL Command
#### What changes were proposed in this pull request?
Currently, we are allowed to drop multiple partitions using a single DDL
command: Alter Table Drop Partition. However, the internal implementation could
break atomicity. That means, we could drop a subset of qualified partitions.
This PR disallows dropping multiple partitions by a single command.
#### How was this patch tested?
Modified the existing test cases and added new test cases.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gatorsmile/spark banDropMultiPart
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/12801.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #12801
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commit ddd0b2e788d0d2d0681cdfb4eea39c522d46e10e
Author: gatorsmile <[email protected]>
Date: 2016-04-29T06:54:33Z
initial fix.
commit 980b51eae9458a19b8b186ff352dbe67265aa0e6
Author: gatorsmile <[email protected]>
Date: 2016-04-29T06:56:07Z
initial fix.
commit 524d5a40e61de4c4f9d84988b91eb1a41d9e0bdd
Author: gatorsmile <[email protected]>
Date: 2016-04-29T23:55:37Z
Merge remote-tracking branch 'upstream/master' into banDropMultiPart
commit b0e19c48b612f919364f35eb0325aab28a26c5ea
Author: gatorsmile <[email protected]>
Date: 2016-04-29T23:55:47Z
Merge remote-tracking branch 'upstream/master' into banDropMultiPart
commit 6272398e7ac97039a21b79a7361cca0d8250261f
Author: gatorsmile <[email protected]>
Date: 2016-04-30T03:50:22Z
fixed test cases
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