Why not just use pg_catalog.current_schemas()?
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Halley Pacheco de Oliveira wrote:
> I would like to know how to use current_schemas(), since SELECT current_schemas(); didn't work in
> PostgreSQL 7.4 and 8.0 psql.
>
> Halley
>
> PostgreSQL 8.0.3 Documentation
> Chapter 16. Server Run-time Environment
> 16.4. Run-time Configuration
>
> The current effective value of the search path can be examined via the SQL function
> current_schemas(). This is not quite the same as examining the value of search_path, since
> current_schemas() shows how the requests appearing in search_path were resolved.
>
> teste=# \dn
> ********* QUERY **********
> SELECT n.nspname AS "Name",
> u.usename AS "Owner"
> FROM pg_catalog.pg_namespace n LEFT JOIN pg_catalog.pg_user u
> ON n.nspowner=u.usesysid
> WHERE (n.nspname NOT LIKE 'pg\\_temp\\_%' OR
> n.nspname = (pg_catalog.current_schemas(true))[1])
> ORDER BY 1;
> **************************
>
> List of schemas
> Name | Owner
> --------------------+----------
> information_schema | postgres
> pg_catalog | postgres
> pg_toast | postgres
> public | postgres
> (4 rows)
>
> teste=# SELECT current_schema();
> current_schema
> ----------------
> public
> (1 row)
>
> teste=# SELECT current_schemas();
> ERROR: function current_schemas() does not exist
> HINT: No function matches the given name and argument types. You may need to add explicit type
> casts.
>
>
>
>
>
>
>
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