uros-db commented on code in PR #45856: URL: https://github.com/apache/spark/pull/45856#discussion_r1552941872
########## sql/core/src/test/scala/org/apache/spark/sql/CollationRegexpExpressionsSuite.scala: ########## @@ -165,15 +165,23 @@ class CollationRegexpExpressionsSuite // Supported collations val checks = Seq( - CollationTestCase("ABC", "[B]", "UTF8_BINARY", Seq("A", "C")) + CollationTestCase("ABC", "[B]", "UTF8_BINARY", Seq("A", "C")), + CollationTestCase("ABC", "[b]", "UTF8_BINARY", Seq("ABC")), + CollationTestCase("ABC", "[b]", "UTF8_BINARY_LCASE", Seq("A", "C")), + CollationTestCase("AAA", "[a]", "UTF8_BINARY_LCASE", Seq("", "", "", "")), + CollationTestCase("AAA", "[b]", "UTF8_BINARY_LCASE", Seq("AAA")), + CollationTestCase("aAbB", "[ab]", "UTF8_BINARY_LCASE", Seq("", "", "", "", "")), + CollationTestCase("", "", "UTF8_BINARY_LCASE", Seq("")), + CollationTestCase("", "[a]", "UTF8_BINARY_LCASE", Seq("")), + CollationTestCase("xAxBxaxbx", "[AB]", "UTF8_BINARY_LCASE", Seq("x", "x", "x", "x", "x")), + CollationTestCase("ABC", "[B]", "UNICODE", Seq("A", "C")), + CollationTestCase("ABC", "[b]", "UNICODE", Seq("ABC")) ) checks.foreach(ct => checkEvaluation(prepareStringSplit(ct.s1, ct.s2, ct.collation), ct.expectedResult) Review Comment: I think we should consider rewriting `prepareStringSplit` here, as it doesn't make much sense to do: `val splitByExpr = Literal.create(splitBy, StringType(collationId))` considering that **collationAwareSplit** doesn't respect collation for this parameter at all furthermore, consider how casting makes sense in this instance, and whether it's needed at all -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org