sunjincheng121 commented on a change in pull request #7196: [FLINK-10974]
[table] Add support for flatMap to table API
URL: https://github.com/apache/flink/pull/7196#discussion_r276917451
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File path:
flink-table/flink-table-planner/src/test/scala/org/apache/flink/table/runtime/stream/table/CorrelateITCase.scala
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@@ -305,6 +305,36 @@ class CorrelateITCase extends AbstractTestBase {
)
}
+ @Test
+ def testFlatMap(): Unit = {
+ val env = StreamExecutionEnvironment.getExecutionEnvironment
+ val tEnv = StreamTableEnvironment.create(env)
+ StreamITCase.testResults = mutable.MutableList()
+
+ val func2 = new TableFunc2
+ val ds = testData(env).toTable(tEnv, 'a, 'b, 'c)
+ // test non alias
+ .flatMap(func2('c))
+ .select('f0, 'f1)
+ // test the output field name of flatMap is the same as the field name
of input table
Review comment:
` input table`->`the input table`?
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