SQL equivallent to "\ds" in psql

execute psql with a -E option, then do \ds. You'll see the queries sent to
the backend.

Later,
Rob

Use psql -E and it will give you the SQL for the backslash commands..

-Mitch

----- Original Message -----
From: "Arcady Genkin" <a.genkin@utoronto.ca>
To: "PostgreSQL" <pgsql-general@postgresql.org>
Sent: Wednesday, October 17, 2001 4:35 PM
Subject: [GENERAL] SQL equivallent to "\ds" in psql

If you start psql with the -E flag it will output the
SQL queries it uses to do the nifty \ds command (and
all of the other \ commands). This is a very handy
tool.

Here's what I get on my test system:

processdata=# \ds
********* QUERY *********
SELECT c.relname as "Name",
(CASE WHEN relkind = 'S' THEN 'sequence'::text ELSE
'index'::text END) as "Type",
u.usename as "Owner"
FROM pg_class c, pg_user u
WHERE c.relowner = u.usesysid AND relkind in ('S')
AND c.relname !~ '^pg_'
UNION
SELECT c.relname as "Name",
(CASE WHEN relkind = 'S' THEN 'sequence'::text ELSE
'index'::text END) as "Type",
NULL as "Owner"
FROM pg_class c
WHERE not exists (select 1 from pg_user where usesysid
= c.relowner) AND relkind in ('S')
AND c.relname !~ '^pg_'

ORDER BY "Name"
*************************

List of relations
Name | Type | Owner
---------------------------+----------+----------
batterbatches_batchid_seq | sequence | earlj
board_event_seq | sequence | postgres
field_event_seq | sequence | postgres
peeler_inst_seq | sequence | postgres
prod_journal_id_seq | sequence | postgres
raw_inst_seq | sequence | postgres
setting_inst_seq | sequence | postgres
setting_mods_seq | sequence | postgres
setting_specs_seq | sequence | postgres
train_event_seq | sequence | postgres
tscales_seq | sequence | postgres
(11 rows)

Take care,
Jason

--- Arcady Genkin <a.genkin@utoronto.ca> wrote:

Where does Postgres store information about the
sequences? I tried
looking in the tables produced by "\dS", but could
find no references
to the sequences. :(

What I want is an SQL equivallent of "\ds" command,
which will return
a list of all sequences in the current database. I
need this for a
periodically run script so that I could keep an eye
on all sequences
in the database.

Many thanks,
--
Arcady Genkin

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On 17 Oct 2001, Arcady Genkin wrote:

What I want is an SQL equivallent of "\ds" command, which will return
a list of all sequences in the current database. I need this for a
periodically run script so that I could keep an eye on all sequences
in the database.

\ds *is* the psql command for listing sequences:

arc=> create sequence testme;
CREATE
arc=> \ds
List of relations
Name | Type | Owner
--------+----------+-----------
testme | sequence | arc_admin
(1 row)

-- Brett
http://www.chapelperilous.net/
------------------------------------------------------------------------
Thrashing is just virtual crashing.

On 17 Oct 2001, Arcady Genkin wrote:

Where does Postgres store information about the sequences? I tried
looking in the tables produced by "\dS", but could find no references
to the sequences. :(

Oops, I thought you had made a typo, but I made a thinko. Use the -E
option to generate the SQL to pull out sequences:

arc=> create sequence testme;
CREATE
arc=> \ds
********* QUERY *********
SELECT c.relname as "Name",
(CASE WHEN relkind = 'S' THEN 'sequence'::text ELSE 'index'::text END)
as "Type",
u.usename as "Owner"
FROM pg_class c, pg_user u
WHERE c.relowner = u.usesysid AND relkind in ('S')
AND c.relname !~ '^pg_'
UNION
SELECT c.relname as "Name",
(CASE WHEN relkind = 'S' THEN 'sequence'::text ELSE 'index'::text END)
as "Type",
NULL as "Owner"
FROM pg_class c
WHERE not exists (select 1 from pg_user where usesysid = c.relowner) AND
relkind in ('S')
AND c.relname !~ '^pg_'

ORDER BY "Name"
*************************

List of relations
Name | Type | Owner
--------+----------+-----------
testme | sequence | arc_admin
(1 row)

-- Brett
http://www.chapelperilous.net/
------------------------------------------------------------------------
Sometime when you least expect it, Love will tap you on the shoulder...
and ask you to move out of the way because it still isn't your turn.
-- N.V. Plyter