From: "joel xue" <joel_xue@hotmail.com>
To: pgsql-interfaces@postgresql.org
Subject: Help for plpgsql!!
Date: Wed, 18 Oct 2000 21:53:23 GMT
Mime-Version: 1.0
Content-Type: text/plain; format=flowed
Message-ID: <F212RelSbxpqyDp6fwq00008e81@hotmail.com>

Dear Sir/Madam,
  My table is :
Attribute |   Type    | Modifier
-----------+-----------+----------
empname   | text      |
salary    | integer   |
last_date | timestamp |
last_name | name      |
My function and trigger is:
create function isFull()
returns opaque as '
  begin
    select count(*) into tmp1 from emp;
    if tmp1.count >= 5 then
      select min(last_date) into tmp2 from emp;
      delete from emp where last_date=tmp2.min;
      drop table tmp2;
    end if;
    drop table tmp1;
  end; '
language 'plpgsql';
create trigger isfull before insert on emp for each row execute procedure 
isFull
();

But my error messages is :
ERROR:  parser: parse error at or near "tmp1"

I can finish these steps in psql environment,why it could not work well in 
plpgsql?Can you help me?
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