RE: system performance -- RPG400-L

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Subject: RE: system performance
From: "Dennis Lovelady" <iseries@xxxxxxxxxxxx>
Date: Sat, 29 Aug 2009 13:17:20 -0400
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This gets much more complicated than we've stated so far. The key part
of
what
I was saying is "index if it has select/omit".
All of this will be dependent upon

What release and ptf level
The QAQQINI settings (ignore_derived_index)
Any other indexes built (not logicals, but sql indexes).

Sorry; I had misread your intent. I thought you were interchanging
"Select/Omit" and "WHERE clause." I hadn't considered that the FROM/JOIN
file might be a S/O logical. My bad.

Dennis

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