Re: Explain Analyze returns faster than psql or JDBC calls.

From: Dave Cramer <pg(at)fastcrypt(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: G B <g(dot)b(dot)coder(at)gmail(dot)com>, pgsql-performance(at)postgresql(dot)org
Subject: Re: Explain Analyze returns faster than psql or JDBC calls.
Date: 2009-10-09 11:57:38
Message-ID: 491f66a50910090457j62f62af5o4c74fc707cd8785a@mail.gmail.com
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You should also keep in mind that JDBC uses prepared statements, so you have
to explain analyze accordingly.

Dave

On Thu, Oct 8, 2009 at 5:18 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:

> G B <g(dot)b(dot)coder(at)gmail(dot)com> writes:
> > How can explain-analyze return significantly much faster than other
> means?
>
> If the returned data is large or takes a lot of work to convert to text,
> this could happen, since EXPLAIN ANALYZE doesn't bother to format the
> tuples for display. How big are those bytea columns, on average?
>
> regards, tom lane
>
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