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https://issues.apache.org/jira/browse/SPARK-17647?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15734678#comment-15734678
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Xiangrui Meng commented on SPARK-17647:
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[[email protected]] [~yhuai] I think this is a critical correctness bug,
which should be fixed in 2.1. Thoughts?
> SQL LIKE does not handle backslashes correctly
> ----------------------------------------------
>
> Key: SPARK-17647
> URL: https://issues.apache.org/jira/browse/SPARK-17647
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Xiangrui Meng
> Labels: correctness
>
> Try the following in SQL shell:
> {code}
> select '\\\\' like '%\\%';
> {code}
> It returned false, which is wrong.
> cc: [~yhuai] [~joshrosen]
> A false-negative considered previously:
> {code}
> select '\\\\' rlike '.*\\\\\\\\.*';
> {code}
> It returned true, which is correct if we assume that the pattern is treated
> as a Java string but not raw string.
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