cloud-fan commented on code in PR #46143:
URL: https://github.com/apache/spark/pull/46143#discussion_r2566978298
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/regexpExpressions.scala:
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@@ -83,6 +83,27 @@ abstract class StringRegexExpression extends BinaryExpression
matches(regex, input1.asInstanceOf[UTF8String].toString)
}
}
+
+ override def expensive: Boolean = hasExpensiveChild || _expensiveRegex
+
+ lazy val _expensiveRegex = {
Review Comment:
```suggestion
private lazy val _expensiveRegex = {
```
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