GitHub user aray opened a pull request:
https://github.com/apache/spark/pull/18800
[SPARK-21330][SQL] Bad partitioning does not allow to read a JDBC table
with extreme values on the partition column
## What changes were proposed in this pull request?
An overflow of the difference of bounds on the partitioning column leads to
no data being read. This
patch checks for this overflow.
## How was this patch tested?
New unit test.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/aray/spark SPARK-21330
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18800.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 #18800
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commit 7de8ccc05158f5b60af96c8cf22a2b9e20675817
Author: Andrew Ray <ray.and...@gmail.com>
Date: 2017-08-01T19:12:00Z
the fix
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