Search Postgresql Archives

Re: Performance of subselects

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



2009/3/9 Christian Schröder <cs@xxxxxxxxx>:
> Scott Marlowe wrote:
>>>
>>> you can run out of memory if too many connections try to use too much
>>> of it at the same time, that's why it is advisable to set work_mem per
>>> connection/query, should the connection/query require more.
>>>
>>
>> Definitely.
>>
>
> I understand why this is advisable; however, something inside me hates the
> idea to put this kind of database specific stuff inside an application. How
> about portability? Why does the application developer have to know about
> database internals? He knows sql, that should be sufficient.
> I have the (maybe naive) idea of a clear separation of database
> administration (including performance tuning) and application development.
> Is this idea completely wrong?

You can always use a different account for things that need big
work_mem (typically reporting queries etc.) and alter that user to
have a different work_mem.  That all the dev needs to know is which
account to use.  You can also set it by database if that's a better
fit.

-- 
Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]
  Powered by Linux