Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/5202#discussion_r160687249
--- Diff:
flink-libraries/flink-table/src/test/scala/org/apache/flink/table/expressions/ScalarFunctionsTest.scala
---
@@ -1216,6 +1216,74 @@ class ScalarFunctionsTest extends
ScalarTypesTestBase {
)
}
+ @Test
+ def testShiftLeft(): Unit = {
+ testSqlApi(
--- End diff --
Add tests with null arguments.---
