From: Stephan Szabo <sszabo@megazone23.bigpanda.com>
To: ||//::..-cwhisperer-..:://|| <cwhisperer@vo.lu>
Cc: pgsql-sql@postgresql.org
Subject: Re: uinique identifier
Date: Sun, 26 May 2002 08:52:00 -0700 (PDT)
Message-ID: <20020526084942.O1248-100000@megazone23.bigpanda.com> (raw)
In-Reply-To: <9069492264.20020526125335@vo.lu>
On Sun, 26 May 2002, ||//::..-cwhisperer-..:://|| wrote:
> hi,
>
> I want to create an unique identifier for all the tables in my db.
>
> as paramater I pass the length of the identifier and the table name:
>
> here my function
>
> DROP FUNCTION ui_alz_table (int4,varchar);
>
> CREATE FUNCTION ui_alz_table (int4,varchar) RETURNS varchar AS '
>
> DECLARE
> iLoop int4;
> result varchar;
> nr int4;
> query_string varchar;
>
> BEGIN
> result := '''';
> nr := 1;
>
> IF ($1>0) AND ($1 < 255) THEN
> WHILE nr > 0 LOOP
> FOR iLoop in 1 .. $1 LOOP
> result := result || chr(int4(random()*25)+65);
> END LOOP;
> query_string := ''Select * from ''|| $2 || '' where id = '' || result;
I think you probably want to use quote_ident on $2 and you'll
want to single quote result since otherwise you'll get a query string
like: select * from foo where id=FADFDFAD;
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To: pgsql-sql@postgresql.org
Cc: sszabo@megazone23.bigpanda.com, cwhisperer@vo.lu
Subject: Re: uinique identifier
In-Reply-To: <20020526084942.O1248-100000@megazone23.bigpanda.com>
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