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https://issues.apache.org/jira/browse/SPARK-17647?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15517636#comment-15517636
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Josh Rosen commented on SPARK-17647:
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On the other hand, running
{code}
select '\\\\' like '%\\%'
{code}
seems to return false in MySQL (because I think this is being interpreted as
"any characters followed by a literal percent"), but it returns true in
Postgres. I'm running postgres via {{psql}} and MySQL via MySQLWorkbench.
> SQL LIKE/RLIKE do 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 '%\\%';
> select '\\\\' rlike '.*\\\\\\\\.*';
> {code}
> The first returned false and the second returned true. Both are wrong.
> cc: [~yhuai] [~joshrosen]
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