From: | Luis Flores <luiscamposflores(at)gmail(dot)com> |
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To: | pgsql-jdbc <pgsql-jdbc(at)postgresql(dot)org> |
Subject: | isValid availability |
Date: | 2012-09-27 11:33:03 |
Message-ID: | CA+nXnG8F=Phchnj-FC5_sL-w8RhhSO4XHt6wATfw3cyL0WExNg@mail.gmail.com |
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Lists: | pgsql-jdbc |
Hello,
The method isValid is implemented and committed since 2012-01-19 by
Dave Cramer, however, it isn't available on the driver version 901 and
902.
Any reason why?
On the same subject, the implementation is using SELECT 1; because it
was the simplest query returning a value, simply issuing an "" won't
guarantee to go to the back-end (it may go for now, but it depends on
the driver bottom layer to issue it to the back-end. And the is no
real performance advantage from "" to "SELECT 1" since no one is going
to call isValid hundreds of times a second.
I also noted that the driver release dates on the site are incorrect
(http://jdbc.postgresql.org/changes.html) for driver 901 and 902
(copy/paste is evil).
Thank you all,
Luis Flores
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