On Sat, 25 Dec 2004, David Brown wrote:
> You're right, in the case of standalone Perl or Apache::DBI. However, if
> DBD::Pg happens to grab an already-open connection that doesn't have a
> one-to-one correspondence with a $dbh (e.g. from a Postgres connection pool,
> or from an external pooling server like DBBalancer[1]), the state of the
> connection (with respect to past PREPAREs) isn't known.
>
I'm not clear why the pooling case is different. Speaking from the JDBC
side (which does connection pooling, but not statement pooling) there is
a proxy connection object which wraps a real connection. So each new
connection from the pool gets a new proxy object, but the real underlying
connection stays the same. So the real connection will know what it has
or has not prepared. So I don't see why, simply because it's in a pool,
that it forgets what's been prepared.
Kris Jurka
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