| From: | Boris Partensky <boris(dot)partensky(at)gmail(dot)com> |
|---|---|
| To: | Oliver Jowett <oliver(at)opencloud(dot)com> |
| Cc: | Maciek Sakrejda <msakrejda(at)truviso(dot)com>, PG-JDBC Mailing List <pgsql-jdbc(at)postgresql(dot)org> |
| Subject: | Re: Upgrading JDBC driver from 7.3 to 8.4 affected execution plans |
| Date: | 2010-10-05 01:33:20 |
| Message-ID: | AANLkTi=hA5R+REbnsWpB9zYrfyd6cbGL5vQgpCHJnkg-@mail.gmail.com |
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| Lists: | pgsql-jdbc |
Oliver, yes. I agree with you, I am still trying to understand that.
On Mon, Oct 4, 2010 at 6:09 PM, Oliver Jowett <oliver(at)opencloud(dot)com> wrote:
> Boris Partensky wrote:
>> Oh, this issue should probably be mentioned in
>> http://jdbc.postgresql.org/documentation/faq.html#upgradeTo80
>> document. It's pretty subtle and can bite someone hard.
>
> The thing that confuses me is that you said you also see the problem via
> psql - but psql isn't using parameterized queries at all (psql should be
> very similar to how the 7.3 driver executes queries, as in the 7.3 era
> the driver would do parameter substitution before sending a single query
> string to the server)
>
> -O
>
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