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https://issues.apache.org/jira/browse/SPARK-30625?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17022398#comment-17022398
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Maxim Gekk commented on SPARK-30625:
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I have implemented the feature but I am not sure it is useful. Should I submit
a PR for that, WDYT [~dongjoon] [~Gengliang.Wang] [~cloud_fan] [~beliefer]
[~maropu] [~hyukjin.kwon] ?
> Add `escapeChar` parameter to the `like` function
> -------------------------------------------------
>
> Key: SPARK-30625
> URL: https://issues.apache.org/jira/browse/SPARK-30625
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Maxim Gekk
> Priority: Minor
>
> SPARK-28083 supported LIKE ... ESCAPE syntax
> {code:sql}
> spark-sql> SELECT '_Apache Spark_' like '__%Spark__' escape '_';
> true
> {code}
> but the `like` function can accept only 2 parameters. If we pass the third
> one, it fails with:
> {code:sql}
> spark-sql> SELECT like('_Apache Spark_', '__%Spark__', '_');
> Error in query: Invalid number of arguments for function like. Expected: 2;
> Found: 3; line 1 pos 7
> {code}
> The ticket aims to support the third parameter in `like` as `escapeChar`.
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