From: | Merlin Moncure <mmoncure(at)gmail(dot)com> |
---|---|
To: | "A(dot) Kretschmer" <andreas(dot)kretschmer(at)schollglas(dot)com> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: To pass schemaname as a function parameter |
Date: | 2009-09-03 11:39:11 |
Message-ID: | b42b73150909030439ld9808day7840971a673f3fe7@mail.gmail.com |
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Lists: | pgsql-general |
On Thu, Sep 3, 2009 at 7:37 AM, A.
Kretschmer<andreas(dot)kretschmer(at)schollglas(dot)com> wrote:
> In response to Kalai R :
>> Hi,
>>
>> I wrote a function in plpgsql, to dispaly the student list.
>>
>> In a Database all schemas contains studentlist table. so I wrote the function with schemaname as a parameter(text data type). My code is like
>>
>> CREATE FUNCTION disp_fn(schemaname text) AS $$
>> BEGIN
>> SELECT * FROM schemaname.studentlist;
>> END;
>> $$ LANGUAGE plpgsql;
>
> Not possible in this way, use EXECUTE:
>
> execute 'select * from ' || schemaname || '.studentlist';
>
>
> (it is a dynamic SQL, you haven't a fix tablename)
also (IMO preferred),
execute 'set search_path = public, ' || schemaname;
SELECT * FROM studentlist;
merlin
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