GitHub user gatorsmile opened a pull request:
https://github.com/apache/spark/pull/13095
[SPARK-15312] [SQL] Detect Duplicate Key in Partition Spec and Table
Properties
#### What changes were proposed in this pull request?
When there are duplicate keys in the partition specs or table properties,
we always use the last value and ignore all the previous values. This is caused
by toMap.
partition specs or table properties are widely used in multiple DDL
statements.
This PR is to detect the duplicates and issue an exception if found.
#### How was this patch tested?
Added test cases in DDLSuite
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gatorsmile/spark detectDuplicate
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/13095.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 #13095
----
commit 23f0cfb994178e13df84a5c4904f1c148b199f48
Author: gatorsmile <[email protected]>
Date: 2016-05-13T07:09:23Z
detect duplicates before toMap
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