Re: [GENERAL] Temporary tables and miscellaneous schemas

Tom Lane wrote:
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > Tom Lane wrote:
> >> Why are you doing any of this?  We had agreed to suppress all temp
> >> schemas, period.  The query should be simple.
>
> > I know some feel that showing any temporary schemas is wrong, but it
> > seems that the local temp schema has valuable information.  If I do \d
> > pg_temp_1.*, I see all my temporary tables.  I know we have a TODO to
> > show all existing prepared statements, and giving people a way to see
> > their temp tables seems important.
>
> We already have a way to find out your temp table schema name:
> current_schemas.
>
> regression=# create temp table foo(f1 int);
> CREATE TABLE
> regression=# select current_schemas(true);
>         current_schemas
> -------------------------------
>  {pg_temp_1,pg_catalog,public}
> (1 row)
>
> regression=# select (current_schemas(true))[1];
>  current_schemas
> -----------------
>  pg_temp_1
> (1 row)
>
> regression=# select relname from pg_class c join pg_namespace n
> regression-# on relnamespace = n.oid
> regression-# where nspname = (current_schemas(true))[1];
>  relname
> ---------
>  foo
> (1 row)
>
>
> I don't think it's reasonable to complicate \dn so much in order to
> provide an alternative way of learning your temp schema name.

Is current_schemas(true))[1] always the temp schema name?  That would
clean things up nicely.

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