2011/6/14 Alvaro Herrera <alvherre@commandprompt.com>:
> Excerpts from Cédric Villemain's message of mar jun 14 10:29:36 -0400 2011:
>
>> Attached are updated patches without the plugin itself. I've also
>> added the cache_page_cost GUC, this one is not per tablespace, like
>> others page_cost.
>>
>> There are 6 patches:
>>
>> 0001-Add-reloscache-column-to-pg_class.patch
>
> Hmm, do you really need this to be a new column? Would it work to have
> it be a reloption?
If we can have ALTER TABLE running on heavy workload, why not.
I am bit scared by the effect of such reloption, it focus on HINT
oriented strategy when I would like to allow a dynamic strategy from
the server. This work is not done and may not work, so a reloption is
good at least as a backup (and is more in the idea suggested by Tom
and others)
>
> --
> Álvaro Herrera <alvherre@commandprompt.com>
> The PostgreSQL Company - Command Prompt, Inc.
> PostgreSQL Replication, Consulting, Custom Development, 24x7 support
>
--
Cédric Villemain 2ndQuadrant
http://2ndQuadrant.fr/ PostgreSQL : Expertise, Formation et Support