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https://issues.apache.org/jira/browse/SPARK-41780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17653952#comment-17653952
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BingKun Pan commented on SPARK-41780:
-------------------------------------
I will fix it.
> `regexp_replace('', '[a\\\\d]{0, 2}', 'x')` causes an internal error
> --------------------------------------------------------------------
>
> Key: SPARK-41780
> URL: https://issues.apache.org/jira/browse/SPARK-41780
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.3.0
> Environment: Spark3.3.0 local mode
> Reporter: Remzi Yang
> Priority: Major
>
> {code:scala}
> scala> spark.sql("select regexp_replace('', '[a\\\\d]{0,2}', 'x')").show
> +----------------------------------+
> |regexp_replace(, [a\d]\{0,2}, x, 1)|
> +----------------------------------+
> | x|
> +----------------------------------+
>
>
> scala> spark.sql("select regexp_replace('', '[a\\\\d]{0, 2}', 'x')").show
> org.apache.spark.SparkException: The Spark SQL phase optimization failed with
> an internal error. Please, fill a bug report in, and provide the full stack
> trace.
> {code}
>
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