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To: mas_ who wrote (9)	12/12/2004 9:29:09 PM
From: SI Bob	Read Replies (2) of 81

Actually, date_created is one of those fields that would only be helpful to index if I were trying to build a covered query. Messageid runs in the same order as date_created. I might have it as part of an index somewhere, though. I love covered queries. If I only need a few fields, I make sure I've got an index covering all of them so everthing I need can be retrieved right from the index, rather than having to go to the table itself for anything. Like I said before, I don't sweat over-indexing because inserts are rare and insert speed isn't a big deal. The primary key is messageid, and there are separate indexes for author, subject, and even recipient, since recipient is a selectable field in Advanced Search.

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