"Guillaume Pungeot" <[EMAIL PROTECTED]> writes: > I assume that each postgresql process manage its own cache but that there is > no global cache. Am I right ?
No, you aren't.
Are you sure you're not shutting down the postmaster? Just exiting
individual sessions shouldn't result in anything getting discarded
from shared buffers.
regards, tom lane
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TIP 6: explain analyze is your friend
