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Re: FOR i IN REVERSE documentation error?

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Norman Megill <nmegill(at)bostoninformation(dot)com>
Cc: pgsql-docs(at)postgresql(dot)org
Subject: Re: FOR i IN REVERSE documentation error?
Date: 2001-10-12 21:19:31
Message-ID: 200110122119.f9CLJVh27152@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-docs
I can confirm in testing this function that you are correct.  I have
fixed the documentation as you suggested.  Thanks.

---------------------------------------------------------------------------

drop function bb();
create function bb () returns integer as 'declare i integer;
begin
for i in reverse 10..1 LOOP
insert into aa values (i); 
END LOOP;
return 0;
end'
LANGUAGE 'plpgsql';



> In the 7.2 documentation, Section 23.2.6.2, at
> http://postgresql.crimelabs.net/devel-corner/docs/postgres/plpgsql-description.html
> 
> it shows the example:
> 
>   FOR i IN REVERSE 1..10 LOOP
>      -- some expressions here
>   END LOOP;
> 
> This loop does nothing.  I think it should be:
> 
>   FOR i IN REVERSE 10..1 LOOP
>      -- some expressions here
>   END LOOP;
> 
> which does work (10 iterations).
> 
> Note:  This error is also in the 7.1 documentation.  I tested
> it in 7.1 but not 7.2.
> 
> Thank you,
> Norm Megill
> 
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-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman(at)candle(dot)pha(dot)pa(dot)us               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026

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