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Re: create function problem

From: Stephan Szabo <sszabo(at)megazone(dot)bigpanda(dot)com>
To: Thomas Leung <thomasleung(at)hotmail(dot)com>
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: create function problem
Date: 2004-03-19 14:43:04
Message-ID: 20040319064220.W75424@megazone.bigpanda.com (view raw or flat)
Thread:
Lists: pgsql-admin
On Tue, 16 Mar 2004, Thomas Leung wrote:

> I want to index my table using the year of the date. So I create the
> following function.
>
> create function to_year(date) returns varchar as '
> declare
>   str varchar;
>   begin
>     str := to_char($1, "YYYY");
>     return str;
>   end;
> ' language 'plpgsql' with (iscachable, isstrict);
>
> But I face the problem as follow
> select to_year(current_date);
> WARNING:  Error occurred while executing PL/pgSQL functions to_year
> WARNING:  line 4 at assignment
> ERROR:  Attribute "YYYY" not found
>
> Anybody can help? Thanks.

I think you're going towant doubled single quotes (''YYYY'') not double
quotes.

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Next:From: Stephan SzaboDate: 2004-03-19 14:48:33
Subject: Re: SOS ---- Could you help me with postgresql.....????
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Subject: Re: unimplemented functions

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