13.08.2013 6:52, Dmitry Yemanov wrote:
> Comments anyone? Other suggestions?

   Because plans are read from bottom to the top, I would prefer something like 
this:

(A)

Select Expression
    -> Aggregate
      -> Sort (unique)
      -> Table "RDB$RELATIONS" Access By ID
        -> Index "RDB$INDEX_0" Scan

-- 
   WBR, SD.

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