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https://issues.apache.org/jira/browse/FLINK-9991?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16611854#comment-16611854
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ASF GitHub Bot commented on FLINK-9991:
---------------------------------------
xccui commented on a change in pull request #6450: [FLINK-9991] [table] Add
regexp_replace supported in TableAPI and SQL
URL: https://github.com/apache/flink/pull/6450#discussion_r216953272
##########
File path: docs/dev/table/functions.md
##########
@@ -2866,6 +2890,18 @@ STRING.repeat(INT)
</td>
</tr>
+ <tr>
+ <td>
+ {% highlight scala %}
+STRING1.regexpReplace(STRING2, STRING3)
+{% endhighlight %}
+ </td>
+ <td>
+ <p>Returns a string resulting from replacing all substrings in
<i>string1</i> that match the regular expression <i>string2</i> with
replacement <i>string3</i>, if <i>string1</i> or <i>string2</i> or
<i>string3</i> is NULL, returns NULL.</p>
Review comment:
\<p>Returns a string from \<i>STRING1\</i> with all the substrings that
match a regular expression \<i>STRING2\</i> being replaced with
\<i>STRING3\</i>.\</p>
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> Add regexp_replace supported in TableAPI and SQL
> ------------------------------------------------
>
> Key: FLINK-9991
> URL: https://issues.apache.org/jira/browse/FLINK-9991
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Reporter: vinoyang
> Assignee: vinoyang
> Priority: Minor
> Labels: pull-request-available
>
> regexp_replace is a very userful function to process String.
> For example :
> {code:java}
> regexp_replace("foobar", "oo|ar", "") //returns 'fb.'
> {code}
> It is supported as a UDF in Hive, more details please see[1].
> [1]: https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF
>
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