Hi, Here is the query which involves aggregate on a single column: https://dbfiddle.uk/?rdbms=postgres_13&fiddle=44bfd8f6b6b5aad34d00d449c04c5a96
As you can see from `Output:`, there are many columns added which are not needed by the query executor. I wonder if someone has noticed this in the past. If so, what was the discussion around this topic ? Thanks
