TsReaper commented on a change in pull request #9208:
[FLINK-13378][table-planner-blink] Fix bug: Blink-planner not support
SingleValueAggFunction
URL: https://github.com/apache/flink/pull/9208#discussion_r306643885
##########
File path:
flink-table/flink-table-planner-blink/src/test/scala/org/apache/flink/table/runtime/batch/sql/join/ScalarQueryITCase.scala
##########
@@ -46,6 +49,18 @@ class ScalarQueryITCase extends BatchTestBase {
row(6, null)
)
-}
+ @Before
+ override def before(): Unit = {
+ super.before()
+ registerCollection("l", l, INT_DOUBLE, "a, b")
+ registerCollection("r", r, INT_DOUBLE, "c, d")
+ }
+ @Test
+ def testScalarQuery(): Unit = {
Review comment:
No. I mean something like `SELECT * FROM l WHERE a = (SELECT c FROM r WHERE
c > 3)`, so that the inner select produces more than 1 record. We should expect
an validation failure on this case.
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