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* current_schemas()
@ 2005-07-05 11:14 Halley Pacheco de Oliveira <[email protected]>
0 siblings, 2 replies; 4+ messages in thread
From: Halley Pacheco de Oliveira @ 2005-07-05 11:14 UTC (permalink / raw)
To: pgsql-docs
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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^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: current_schemas()
@ 2005-07-05 14:06 Alvaro Herrera <[email protected]>
parent: Halley Pacheco de Oliveira <[email protected]>
1 sibling, 0 replies; 4+ messages in thread
From: Alvaro Herrera @ 2005-07-05 14:06 UTC (permalink / raw)
To: Halley Pacheco de Oliveira <[email protected]>; +Cc: pgsql-docs
On Tue, Jul 05, 2005 at 08:14:40AM -0300, Halley Pacheco de Oliveira wrote:
> 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.
alvherre=# select current_schemas(true);
current_schemas
---------------------
{pg_catalog,public}
(1 fila)
alvherre=# select current_schemas(false);
current_schemas
-----------------
{public}
(1 fila)
Function parameters are essential when determining if a function exists
or not.
alvherre=# \df current_schema*
Listado de funciones
Schema | Nombre | Tipo de dato de salida | Tipos de datos de argumentos
------------+-----------------+------------------------+------------------------------
pg_catalog | current_schema | name |
pg_catalog | current_schemas | name[] | boolean
(2 filas)
--
Alvaro Herrera (<alvherre[a]surnet.cl>)
FOO MANE PADME HUM
^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: current_schemas()
@ 2005-07-30 02:30 Bruce Momjian <[email protected]>
parent: Halley Pacheco de Oliveira <[email protected]>
1 sibling, 1 reply; 4+ messages in thread
From: Bruce Momjian @ 2005-07-30 02:30 UTC (permalink / raw)
To: Halley Pacheco de Oliveira <[email protected]>; +Cc: pgsql-docs
Why not just use pg_catalog.current_schemas()?
---------------------------------------------------------------------------
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.
>
>
>
>
>
>
>
> _______________________________________________________
> Yahoo! Acesso Gr?tis - Internet r?pida e gr?tis.
> Instale o discador agora! http://br.acesso.yahoo.com/
>
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--
Bruce Momjian | http://candle.pha.pa.us
[email protected] | (610) 359-1001
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^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: current_schemas()
@ 2005-07-30 03:21 Alvaro Herrera <[email protected]>
parent: Bruce Momjian <[email protected]>
0 siblings, 0 replies; 4+ messages in thread
From: Alvaro Herrera @ 2005-07-30 03:21 UTC (permalink / raw)
To: Bruce Momjian <[email protected]>; +Cc: Halley Pacheco de Oliveira <[email protected]>; pgsql-docs
On Fri, Jul 29, 2005 at 10:30:13PM -0400, Bruce Momjian wrote:
>
> Why not just use pg_catalog.current_schemas()?
The function is current_schemas(bool), that's why this example doesn't
work:
> > 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.
--
Alvaro Herrera (<alvherre[a]alvh.no-ip.org>)
"Aprende a avergonzarte más ante ti que ante los demás" (Demócrito)
^ permalink raw reply [nested|flat] 4+ messages in thread
end of thread, other threads:[~2005-07-30 03:21 UTC | newest]
Thread overview: 4+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2005-07-05 11:14 current_schemas() Halley Pacheco de Oliveira <[email protected]>
2005-07-05 14:06 ` Alvaro Herrera <[email protected]>
2005-07-30 02:30 ` Bruce Momjian <[email protected]>
2005-07-30 03:21 ` Alvaro Herrera <[email protected]>
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