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Thread: How to define global variable in postgresql

How to define global variable in postgresql

From
EazonGuo
Date:
Hello. How can we define a global variable in postgresql?

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Best regards

Eazon

Re: How to define global variable in postgresql

From
Christopher Browne
Date:
On Fri, Aug 19, 2011 at 10:58 AM, EazonGuo <eazonguo@gmail.com> wrote:
> Hello. How can we define a global variable in postgresql?

I believe CREATE TABLE is the usual mechanism to do this sort of thing.
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Re: How to define global variable in postgresql

From
Florian Weimer
Date:
> Hello. How can we define a global variable in postgresql?

Do you mean session-private, but persistent across transactions?
Configuration parameters can be abused for this purpose.

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Florian Weimer                <fweimer@bfk.de>
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Re: How to define global variable in postgresql

From
Valentine Gogichashvili
Date:
> Hello. How can we define a global variable in postgresql?

you can also use global structure in plpython for example:

Re: How to define global variable in postgresql

From
Jim Nasby
Date:
On Aug 19, 2011, at 4:15 PM, Valentine Gogichashvili wrote:
> > Hello. How can we define a global variable in postgresql?
>
> you can also use global structure in plpython for example:
>
> http://www.postgresql.org/docs/9.0/static/plpython-sharing.html

Same thing with plperl.

BTW, if you want something that's global but also transactional then you'll want to use a temp table.
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Jim C. Nasby, Database Architect                   jim@nasby.net
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