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https://issues.apache.org/jira/browse/DRILL-4486?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15184071#comment-15184071
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ASF GitHub Bot commented on DRILL-4486:
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GitHub user StevenMPhillips opened a pull request:
https://github.com/apache/drill/pull/412
DRILL-4486: Fix expression serialization escaping
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/StevenMPhillips/drill parser
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/drill/pull/412.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 #412
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commit 26c6f97e08698f91298186d9c545ea1fe3102552
Author: Steven Phillips <[email protected]>
Date: 2016-03-05T04:29:26Z
DRILL-4486: Fix expression serialization escaping
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> Expression serializer incorrectly serializes escaped characters
> ---------------------------------------------------------------
>
> Key: DRILL-4486
> URL: https://issues.apache.org/jira/browse/DRILL-4486
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Steven Phillips
> Assignee: Steven Phillips
>
> the drill expression parser requires backslashes to be escaped. But the
> ExpressionStringBuilder is not properly escaping them. This causes problems,
> especially in the case of regex expressions run with parallel execution.
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