npawar commented on issue #4870: Add getResultColumnName API to AggregationFunction to fetch sql compliant result name URL: https://github.com/apache/incubator-pinot/pull/4870#issuecomment-559280223 > This is good to have for now since we don't support aliasing. But this should be typically solved at a very high level using a mapping table. Let's make sure that this will not make it difficult to implement aliasing later. I feel this is required. We have no other way to fetch the name like `avg(foo)`. Order by cannot understand `avg_foo`, as the TransformExpressionTree converts it to `avg(foo)`. I don't think this should affect ability to handle aliases later
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