switching db's on the fly

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switching db's on the fly

От:
Toby Doig <toby@paperjet.com>
Дата:
after connecting to a db under pg 7.2.x using the url, is it possible to
switch to another db hosted on the same machine without reconnecting?

i have a setup with several databases all hosted on the same server with
the same db owner etc. i've written my own pooling but then i need to pool
for each db which, given the number of db's, means i end up with a lot of
idle connections using resources.

what would be better is to be able to switch to the appropriate db
when the connection is retrieved from the pool. this then pools
connections between db's as well. i understand there's some mgmt involved
with access to the db on a switch, but i believe this is easily managed.

under mssql server you can use the USE  command.
Is there some equivalent or some hack possible?

toby

Re: switching db's on the fly

От:
Bruce Momjian <pgman@candle.pha.pa.us>
Дата:
Toby Doig wrote:
> after connecting to a db under pg 7.2.x using the url, is it possible to
> switch to another db hosted on the same machine without reconnecting?
> 
> i have a setup with several databases all hosted on the same server with
> the same db owner etc. i've written my own pooling but then i need to pool
> for each db which, given the number of db's, means i end up with a lot of
> idle connections using resources.
> 
> what would be better is to be able to switch to the appropriate db
> when the connection is retrieved from the pool. this then pools
> connections between db's as well. i understand there's some mgmt involved
> with access to the db on a switch, but i believe this is easily managed.
> 
> under mssql server you can use the USE  command.
> Is there some equivalent or some hack possible?

No, sorry, you have to reconnect. psql has a \connect, but it just
reconnects too.

-- 
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