From: George Weaver <georgew1@mts.net>
To: Kumar <sgnerd@yahoo.com.sg>
Cc: pgsql-sql@postgresql.org
Subject: Re: Object description at Client Window
Date: Fri, 17 Oct 2003 09:49:13 -0500
Message-ID: <005f01c394bd$ea11f100$2a0da18e@cleartag> (raw)
References: <005401c39474$db9cf640$7502a8c0@hdsc.com>
<3F8F8A37.1010208@racistnames.com>
<007b01c3948a$de7800b0$7502a8c0@hdsc.com>
<200310171024.17494.dev@archonet.com>
<00ea01c394ab$7b0576e0$7502a8c0@hdsc.com>
Kumar,
pg_class.relname is type "name". You are trying to compare it to p_tablename
which is type "varchar". Try changing your function definition to:
CREATE OR REPLACE FUNCTION public.desc_table(name)
^^^^
HTH
George
SNIP
> CREATE OR REPLACE FUNCTION public.desc_table(varchar)
> RETURNS refcursor AS
> 'DECLARE
>
> ref REFCURSOR ;
> p_tablename ALIAS FOR $1;
>
> BEGIN
> OPEN ref FOR
> SELECT a.attname,
> format_type(a.atttypid, a.atttypmod),
> a.attnotnull,
> a.atthasdef,
> a.attnum
> FROM pg_class c, pg_attribute a
> WHERE c.relname = p_tablename
> AND a.attnum > 0
> AND a.attrelid = c.oid
> ORDER BY a.attnum;
>
> RETURN ref;
> END;'
> LANGUAGE 'plpgsql' VOLATILE;
>
>
> While trying to execute this
> select desc_table('companies');
>
> I got the following error.
> WARNING: Error occurred while executing PL/pgSQL function desc_table
> WARNING: line 7 at open
>
> ERROR: Unable to identify an operator '=' for types 'name' and 'character
> varying'
> You will have to retype this query using an explicit cast
>
SNIP
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To: pgsql-sql@postgresql.org
Cc: georgew1@mts.net, sgnerd@yahoo.com.sg
Subject: Re: Object description at Client Window
In-Reply-To: <005f01c394bd$ea11f100$2a0da18e@cleartag>
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