ScrapCodes commented on a change in pull request #30142:
URL: https://github.com/apache/spark/pull/30142#discussion_r514971616
##########
File path:
external/docker-integration-tests/src/test/scala/org/apache/spark/sql/jdbc/v2/V2JDBCTest.scala
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@@ -46,6 +46,20 @@ trait V2JDBCTest extends SharedSparkSession {
assert(msg.contains("Cannot update missing field bad_column"))
}
+ def testRenameColumn(tbl: String): Unit = {
+ sql(s"CREATE TABLE $tbl (ID STRING NOT NULL, ID1 STRING NOT NULL) USING _")
+ sql(s"ALTER TABLE $tbl RENAME COLUMN ID TO ID2")
+ val t = spark.table(s"$tbl")
+ val expectedSchema = new StructType().add("ID2", StringType, nullable =
true)
+ .add("ID1", StringType, nullable = true)
+ assert(t.schema === expectedSchema)
+ // Rename to already existing column
Review comment:
done
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