GitHub user jodersky opened a pull request:
https://github.com/apache/spark/pull/15398
[SPARK-17647][SQL] Fix backslash escaping in 'LIKE' patterns.
## What changes were proposed in this pull request?
Modify SQL-to-Java regex escaping to correctly handle cases of double
backslashes followed by another special character. This fixes cases such as
'\\\\' not matching '%\\%'.
## How was this patch tested?
Extra case in regex unit tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/jodersky/spark SPARK-17647
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/15398.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 #15398
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commit 42c27180efc2691d3dd117c429077d888b9fe12d
Author: Jakob Odersky <ja...@odersky.com>
Date: 2016-10-08T00:24:22Z
Fix backslash escaping in 'LIKE' patterns.
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