GitHub user liancheng opened a pull request:
https://github.com/apache/spark/pull/5127
[SPARK-6444] [SQL] A quick fix for SPARK-6444
As explained in the JIRA ticket [comment] [1], this PR introduces a simple
quick fix for SPARK-6444. The root cause of this issue is that we don't check
data types of input arguments for SQL functions. PR #4685 is heading the right
direction. The reason why moving `PromoteStrings` before `WidenTypes` fixes
this issue is that, `PromoteStrings` helps `Sum` to check and convert the data
type of its argument.
[1]:
https://issues.apache.org/jira/browse/SPARK-6444?focusedCommentId=14374838&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14374838
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/liancheng/spark spark-6444-quick-fix
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/5127.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 #5127
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commit cd8f77819f11000ff316aef6e61ce46d02ac4d16
Author: Cheng Lian <[email protected]>
Date: 2015-03-22T10:36:00Z
A quick fix for SPARK-6444
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