Re: Performance of Parser?

On 13-Jan-07, at 7:24 PM, Tom Lane wrote:

> Jignesh Shah <J(dot)K(dot)Shah(at)Sun(dot)COM> writes:
>> The appserver is basically using bunch of prepared statements that
>> the
>> server should be executing directly without doing the parsing again.
>
> Better have another look at that theory, because you're clearly
> spending
> a lot of time in parsing (operator resolution to be specific). I
> think
> your client code is failing to re-use prepared statements the way you
> think it is.

This is exactly what is happening. The driver needs to cache
statements for this to work.

Dave
>
> regards, tom lane
>
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