How feasible would it be to have sort_execute optionally calculate some simple linear statistics on the fly? eg: the sum of values in one column.
If that could be done, then it would avoid the need for an extra pass through the data for many procedures. J' -- PGP Public key ID: 1024D/2DE827B3 fingerprint = 8797 A26D 0854 2EAB 0285 A290 8A67 719C 2DE8 27B3 See http://pgp.mit.edu or any PGP keyserver for public key.
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