david-mollitor-db commented on code in PR #59213:
URL: https://github.com/apache/spark/pull/59213#discussion_r4200553134
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sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/RegexpExpressionsSuite.scala:
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@@ -627,6 +629,26 @@ class RegexpExpressionsSuite extends SparkFunSuite with
ExpressionEvalHelper {
StringSplit(Literal("\"quote"), Literal("\"quote"), Literal(-1)) :: Nil)
}
+ test("SPARK-59961: split refreshes its cached pattern when the regex
changes") {
Review Comment:
Added in 212fcb5: a second test runs the changing-regex rows with
`spark.sql.legacy.truncateForEmptyRegexSplit=true` and a UTF8_LCASE input,
including an empty regex (which that combination splits as `(?ui)`).
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