Re: gset updated patch

Just another thought !

When we are setting up the variable using \gset, I feel their should be a
provision
to drop a particular variable.

Internally, all the variables are set into "VariableSpace" linked-list. We
should provide
a command to Drop a particular variable, because in some cases unnecessary
the
variable count is increasing & consuming a VariableSpace.

We might use two different variables for two different queries, but if we
are not going
to use the first variable in further execution, then unnecessary we are
consuming a
space for 1st variable in the "VariableSpace". In such cases, user will
drop the 1st
variable.

This particular feature/mechanism is useful for a queries which returns a
single row.
So user will be using such technique for multiple queries. In such cases,
user might
need to create multiple variables. Hence I thoughts so.

Let me know if such mechanism is already exists & I am missing the same.

On Mon, Nov 19, 2012 at 9:42 PM, Dimitri Fontaine <dimitri(at)2ndquadrant(dot)fr>wrote:

> "Karl O. Pinc" <kop(at)meme(dot)com> writes:
> > Yes. I'm wrong. For some reason I thought you could use DO to make
> > an anonymous code block that would act as a SETOF function,
> > allowing RETURN NEXT expr (et-al) to be used in the
> > plpgsql code, allowing DO to return table results.
> > (Or, perhaps, instead, be used in place of a table in a SELECT
> > statement.) Oh well.
>
> My key for remembering about that point is that DO is a utility command,
> not a query. Now, the proposal I pushed last time we opened that very
> can of worms was to have inline functions rather than anonymous code
> blocks:
>
> WITH FUNCTION foo(integer) returns bigint language SQL AS $$
> SELECT $1 + 1;
> $$,
>
> Not sure how much that relates to $topic, but still something that
> raises in my mind with enough presence that I need to write about it so
> that it stops calling for attention :)
>
> Regards,
> --
> Dimitri Fontaine
> http://2ndQuadrant.fr PostgreSQL : Expertise, Formation et Support
>
>
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