You might wanted to upgrade to new  version 9.5 with small effort by using
we have done upgrading and achieve more than 20x faster from 8.4 to 9.5 (it
depends on the type of sql statement actually)



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On Mon, Sep 19, 2016 at 3:23 PM, Mark Kirkwood <> wrote:

> On 19/09/16 19:40, Job wrote:
> Hello,
>> i would please like to have some suggestions to optimize Postgres 8.4 for
>> a very heavy number of select (with join) queries.
>> The queries read data, very rarely they write.
> We probably need to see schema and query examples to help you (with
> EXPLAIN ANALYZE output). Also - err 8.4 - I (and others probably) will
> recommend you upgrade to a more recent (and supported for that matter)
> version - currently 9.5/9.6 - lots of performance improvements you are
> missing out on!
> Best wishes
> Mark
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