Hi Henry,
You can see the object code that is produced using VLIST and
examine it for optimizations.
The particular optimsiation that Barry is looking for would not show in the
object code. For a truly constant I-type expression, the query procesor
could evaluate it just once and store the result instead of doing it on
every use. Although not common, such I-types do exist.
Martin Phillips
Ladybridge Systems Ltd
17b Coldstream Lane, Hardingstone, Northampton, NN4 6DB
+44-(0)1604-709200
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