On Mon, Mar 22, 2010 at 11:55 AM, Igor Shevchenko <igor@xxxxxxxxxxxxxx> wrote:
> Hi All,
>
> I wasn't able to find any functions which would allow me to save/fetch/remove
> user variables local to pgsql session, e.g. -
>
> 1. select setvar('user variable name', 'user value');
> 2. select getvar('user variable name');
> 3. select delvar('user variable name');
>
> Is there any way to do this with stock PostgreSQL, or via something in
> contrib?
>
> Would pgsql's HTAB with hash_create and hash_search be a good basis for a
> simple C extension which would provide such feature ?
yes. this is trivially done and works. another way to do it with
pl/perl...there's an example in the docs iirc. personally, I prefer
the htab route. It's going to come down to which dependency you want
to deal with.
merlin
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