In my "day job" I do database tuning - so, I took some of the tools 
(Foglight, Quest Software) has and did a quick analysis of the weewx 
(mySQL) database.

I was REALLY surprised to see that in a 24 hour period, this query was 
executed 735,000 times:
 SELECT SUM ( `wsum` ) , SUM ( `sumtime` ) FROM `archive_day_outTemp` 
WHERE      DATETIME >= ? AND DATETIME < ?

The next highest query was only executed 55,000 times: 
SELECT MAX ( DATETIME ) FROM `archive`

Any thoughts on this?

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