Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/2961#discussion_r91906988
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/api/table/table.scala
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@@ -881,24 +883,21 @@ class GroupWindowedTable(
* }}}
*/
def select(fields: Expression*): Table = {
--- End diff --
Not sure, I would like to avoid a solution where projections for aggregates
are injected at different locations in the code, i.e., injecting a projection
before validation for non-windowed aggregates and after validation (or during
optimization) for windowed aggregates. I think it would be better to have this
consistent.
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