Where is the query? And also paste the \d to show the tables and
indexes.
-Sushant.
On Wed, 2011-08-31 at 14:30 +0530, Jayadevan M wrote:
> Hello all,
> I have a query which takes about 20 minutes to execute and retrieves
> 2000-odd records. The explain for the query is pasted here
> http://explain.depesz.com/s/52f
> The same query, with similar data structures/indexes and data comes
> back in 50 seconds in Oracle. We just ported the product to PostgreSQL
> and are testing it. Any input on what to look for?
>
> Possible relevant parameters are
> shared_buffers = 4GB
> temp_buffers = 8MB
> work_mem = 96MB
> maintenance_work_mem = 1GB
> effective_cache_size = 8GB
> default_statistics_target = 50
>
> It is a machine with 16 GB RAM.
> Regards,
> Jayadevan
>
>
>
>
>
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