Re: Will Postgres ever lock with read only queries?

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От Chris
Тема Re: Will Postgres ever lock with read only queries?
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Msg-id 4A6F7D5C.9050301@gmail.com
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Ответ на Re: Will Postgres ever lock with read only queries?  (Robert James <srobertjames@gmail.com>)
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Robert James wrote:
> Thanks for the replies.  I'm running Postgres 8.2 on Windows XP, Intel
> Core Duo (though Postgres seems to use only one 1 core).

A single query can only use one core, but it will use both if multiple
queries come in.

> The queries are self joins on very large tables, with lots of nested loops.

If you want help optimizing them, you'll need to send through
- explain analyze
- table definitions
and of course
- the query itself

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