Re: [I] Support column reference as percentile arg for `percentile_cont` and `approx_percentile_cont` [datafusion]

["dd-annarose (via GitHub)" <gi...@apache.org>]

dd-annarose commented on issue #24337:
URL: https://github.com/apache/datafusion/issues/24337#issuecomment-5633979787

   @Jefffrey We're hitting an issue when the percentile comes from a projection. The behavior would be the same as for (Trino)[https://trino.io/docs/current/functions/aggregate.html#approx_percentile]: the percentile argument must be constant for all inputs. So yes, essentially it would be a ScalarValue (not always folded into a ScalarValue).
   
   does that seem reasonable to you?


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