cloud-fan commented on a change in pull request #31940:
URL: https://github.com/apache/spark/pull/31940#discussion_r599328607
##########
File path:
sql/core/src/test/scala/org/apache/spark/sql/CharVarcharTestSuite.scala
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@@ -631,6 +631,45 @@ trait CharVarcharTestSuite extends QueryTest with
SQLTestUtils {
checkAnswer(spark.table("t"), Row("c "))
}
}
+
+ test("SPARK-34833: right-padding applied correctly for correlated subqueries
- join keys") {
+ withTable("t1", "t2") {
+ sql(s"CREATE TABLE t1(v VARCHAR(3), c CHAR(5)) USING $format")
+ sql(s"CREATE TABLE t2(v VARCHAR(5), c CHAR(8)) USING $format")
+ sql("INSERT INTO t1 VALUES ('c', 'b')")
+ sql("INSERT INTO t2 VALUES ('a', 'b')")
+ Seq("t1.c = t2.c", "t2.c = t1.c").foreach { predicate =>
+ checkAnswer(sql(
+ s"""
+ |SELECT v FROM t1
+ |WHERE 'a' IN (SELECT v FROM t2 WHERE $predicate)
Review comment:
what's the difference between this test and the existing one
`SPARK-33992: char/varchar resolution in correlated sub query`?
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