Re: phpBB2 slow on postgres vs mysql ?

From: "scott(dot)marlowe" <scott(dot)marlowe(at)ihs(dot)com>
To: Dave Cramer <Dave(at)micro-automation(dot)net>
Cc: "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org>
Subject: Re: phpBB2 slow on postgres vs mysql ?
Date: 2003-02-28 20:22:58
Message-ID: Pine.LNX.4.33.0302281321160.22410-100000@css120.ihs.com
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On 27 Feb 2003, Dave Cramer wrote:

> Anyone have any experience with this and why it is slow

No indexes? Or they don't get used?

Or, they do something like:

select field1 from table1 where id=2;
for (i=0;i<countfromselect;i++){
select * from table2 where field2=field1fromabove
}

when a simple subselect or union or whatever would have worked?

Maybe they make a query like this:

select * from table where field1 in (1000 terms);

Hard to say without looking at their code.

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