The following bug has been logged online:

Bug reference: 2759
Logged by: Leon Miller-Out
Email address: pg_bugs (AT) leonout (DOT) com
PostgreSQL version: 8.1.5
Operating system: CentOS 4.4 x64
Description: \df doesn't show functions with no args
Details:

\df doesn't show functions with no arguments.

This is a documented problem, and appears to have been fixed in April 2005,
so I'm not sure why it's showing up here.

See:
http://groups.google.com/group/pgsql...ead/d28052b7da
9424b0/e6413772fc41324d%23e6413772fc41324d

Running pgsql -E, then \dv outputs:

SELECT n.nspname as "Schema",
p.proname as "Name",
CASE WHEN p.proretset THEN 'setof ' ELSE '' END ||
pg_catalog.format_type(p.prorettype, NULL) as "Result data type",
pg_catalog.oidvectortypes(p.proargtypes) as "Argument data types"
FROM pg_catalog.pg_proc p
LEFT JOIN pg_catalog.pg_namespace n ON n.oid = p.pronamespace
WHERE p.prorettype <> 'pg_catalog.cstring':g_catalog.regtype
AND p.proargtypes[0] <> 'pg_catalog.cstring':g_catalog.regtype
AND NOT p.proisagg
AND pg_catalog.pg_function_is_visible(p.oid)
ORDER BY 1, 2, 3, 4;


The line

AND p.proargtypes[0] <> 'pg_catalog.cstring':g_catalog.regtype

Needs to be either

AND (p.proargtypes[0] <> 'pg_catalog.cstring':g_catalog.regtype
OR p.proargtypes[0] IS NULL)


or gone completely. See thread at
http://archives.postgresql.org/pgsql...3/msg01046.php

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I am wondering if you are using an old psql with your 8.1.X server.
I see in 8.2.X this output from psql \df:

pg_catalog | now | timestamp with time zone |

and I see similar code in 8.1.X. Do you see "now" showing up?

---------------------------------------------------------------------------

Leon Miller-Out wrote:
--
Bruce Momjian bruce (AT) momjian (DOT) us
EnterpriseDB http://www.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

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Bruce, you're right... I was using an old client. I wasn't aware that
the client translated the \d commands into SQL. Thanks for clearing
this up!

Leon

On 11/20/06, Bruce Momjian <bruce (AT) momjian (DOT) us> wrote:
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