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https://issues.apache.org/jira/browse/SPARK-8256?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14579928#comment-14579928
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Cheng Hao commented on SPARK-8256:
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I'll take this one.
> string function: regexp_replace
> -------------------------------
>
> Key: SPARK-8256
> URL: https://issues.apache.org/jira/browse/SPARK-8256
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Reynold Xin
>
> regexp_replace(string INITIAL_STRING, string PATTERN, string REPLACEMENT):
> string
> Returns the string resulting from replacing all substrings in INITIAL_STRING
> that match the java regular expression syntax defined in PATTERN with
> instances of REPLACEMENT. For example, regexp_replace("foobar", "oo|ar", "")
> returns 'fb.' Note that some care is necessary in using predefined character
> classes: using '\s' as the second argument will match the letter s; '\\s' is
> necessary to match whitespace, etc.
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