On Thu, 29 May 2008, Justin wrote:

I'm confussed trying to figure out how caches are being use and being moving through postgresql backend.

The shared_buffers cache holds blocks from the database files. That's it. If you want some more information about how that actually works head to http://www.westnet.com/~gsmith/content/postgresql/ and read "Inside the PostgreSQL Buffer Cache".

The work memory allocated for sorting is separate from that, and it doesn't cache anything. It just provides working room for a query that's being executed right now.

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* Greg Smith [EMAIL PROTECTED] http://www.gregsmith.com Baltimore, MD

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