JingsongLi commented on issue #9484: [FLINK-13774][table] Expression DSL use should resolve Expressions in blink URL: https://github.com/apache/flink/pull/9484#issuecomment-525546756 Hi @twalthr @dawidwys , I will try to do two things as your suggestion: 1.Use `FieldReferenceExpression` to cover `ResolvedAggInputReference`. 2.Use `LocalReferenceExpression` to cover `ResolvedAggLocalReference` and `ResolvedDistinctKeyReference`. Any thoughts about `DeclarativeAggregateFunction`? I have some tangle about using `UnresolvedReferenceExpression` or `LocalReferenceExpression` to represent `aggBufferAttributes`.
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