From: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
---|---|
To: | pgsql-patches(at)postgresql(dot)org |
Subject: | effective_cache_size patch |
Date: | 2004-11-04 16:37:49 |
Message-ID: | 1099586269.4320.469.camel@localhost.localdomain |
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Lists: | pgsql-patches |
I enclose a doc patch for the effective_cache_size parameter in
runtime.sgml: efcdoc.patch
Also, another minor patch which prevents effective_cache_size and
random_page_cost from being set incorrectly: plancost.patch
- previously it was possible to set effective_cache_size to 0, which
would then be ignored and treated as 1 at run-time, so set minimum to 1
and remove test at run-time.
- previously it was possible to set random_page_cost as a fractional
value between 0 and 1, which screws up planner estimation, so set
minimum value of 1 (i.e. random cost same as sequential cost).
--
Best Regards, Simon Riggs
Attachment | Content-Type | Size |
---|---|---|
efcdoc.patch | text/x-patch | 1.9 KB |
plancost.patch | text/x-patch | 1.9 KB |
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