nebojsa-db commented on code in PR #46561:
URL: https://github.com/apache/spark/pull/46561#discussion_r1601308123
##########
sql/core/src/test/scala/org/apache/spark/sql/CollationStringExpressionsSuite.scala:
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@@ -959,6 +959,37 @@ class CollationStringExpressionsSuite
assert(collationMismatch.getErrorClass ===
"DATATYPE_MISMATCH.UNEXPECTED_INPUT_TYPE")
}
+ test("DateFormat string expression with collation") {
+ case class DateFormatTestCase[R](d: String, f: String, c: String, r: R)
+ val testCases = Seq(
+ DateFormatTestCase("2021-01-01", "yyyy-MM-dd", "UTF8_BINARY",
"2021-01-01"),
+ DateFormatTestCase("2021-01-01", "yyyy-dd", "UTF8_BINARY_LCASE",
"2021-01"),
+ DateFormatTestCase("2021-01-01", "yyyy-MM-dd", "UNICODE", "2021-01-01"),
+ DateFormatTestCase("2021-01-01", "yyyy", "UNICODE_CI", "2021")
+ )
+
+ testCases.foreach(t => {
+ val query = s"SELECT date_format(collate('${t.d}', '${t.c}'), '${t.f}')"
+ // Result & data type
+ checkAnswer(sql(query), Row(t.r))
+
assert(sql(query).schema.fields.head.dataType.sameType(SQLConf.get.defaultStringType))
Review Comment:
Done.
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