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https://issues.apache.org/jira/browse/SPARK-31461?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17091201#comment-17091201
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Linpx commented on SPARK-31461:
-------------------------------
i did search，didn't found any
> RLIKE and LIKE expression compiles every time when it used
> ----------------------------------------------------------
>
> Key: SPARK-31461
> URL: https://issues.apache.org/jira/browse/SPARK-31461
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.3.0
> Reporter: Linpx
> Priority: Minor
>
> org.apache.spark.sql.catalyst.expressions
> regexpExpressions.scala
> line: 41
> {code:scala}
> // try cache the pattern for Literal
> private lazy val cache: Pattern = right match {
> case x @ Literal(value: String, StringType) => compile(value)
> case _ => null
> }
> {code}
> StringType Literal value is UTF8String by default
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