Обсуждение: pl/pgsql function result cache

I was thinking about pl/pgsql and comparing it with pl/sql function result cache, featured in Oracle 11g - see
http://www.oracle.com/technology/oramag/oracle/07-sep/o57plsql.html<br/><br />Is it possible to get pl/pgsql function
resultcache functionality into PostgreSQL real soon?<br /><br />Best,<br />Peter<br /><br /><hr />Discover the new
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Peter Manchev wrote:
> I was thinking about pl/pgsql and comparing it with pl/sql function 
> result cache, featured in Oracle 11g - see 
> http://www.oracle.com/technology/oramag/oracle/07-sep/o57plsql.html
> 
> Is it possible to get pl/pgsql function result cache functionality
> into PostgreSQL real soon?

Well it's unlikely to be "real soon" since 8.3 is currently approaching 
beta-test.

Surely memcached+pgmemcache does basically this anyway, except:
- it's not restricted to function outputs
- you can cache application objects
- you can spread your cache across multiple machines

--   Richard Huxton  Archonet Ltd

Richard,

> Surely memcached+pgmemcache does basically this anyway, except:
> - it's not restricted to function outputs
> - you can cache application objects
> - you can spread your cache across multiple machines

Sure, but using memcached is far from automatic ... you'd have to roll your 
own scheme for caching previously called functions, and there would be no way 
to make it performant for iterative execution due to needing to make a 
pgmemcached call to check for cached results with each execution.  

-- 
Josh Berkus
PostgreSQL @ Sun
San Francisco