walterddr commented on a change in pull request #6521: [FLINK-5315][table]
Adding support for distinct operation for table API on DataStream
URL: https://github.com/apache/flink/pull/6521#discussion_r214744230
##########
File path:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/api/scala/expressionDsl.scala
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@@ -214,10 +214,25 @@ trait ImplicitExpressionOperations {
def varSamp = VarSamp(expr)
/**
- * Returns multiset aggregate of a given expression.
+ * Returns multiset aggregate of a given expression.
*/
def collect = Collect(expr)
+ /**
+ * Returns a distinct field reference to a given expression
+ */
+ def distinct: Expression = {
Review comment:
Ahh. that makes perfect sense. Sorry for misunderstanding the comment. I
will make the change. This is in fact much more elegant!!
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