Re: PostgreSQL versus MySQL for GPS Data

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От Craig Ringer
Тема Re: PostgreSQL versus MySQL for GPS Data
Дата
Msg-id 49BFBDA2.50401@postnewspapers.com.au
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Ответ на Re: PostgreSQL versus MySQL for GPS Data  (Stephen Frost <sfrost@snowman.net>)
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Stephen Frost wrote:

> As mentioned, you might want to eliminate duplicate entries; no sense
> storing information that can be trivially derived.

It's pretty easy to do that with a trigger - and you can add a degree of
noise correction too, so that "wobble" in GPS position doesn't get
recorded - you only log changes of more than a certain distance.

--
Craig Ringer

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