I can confirm that this is now fixed, and will appear in 7.1 when it is
released.
test=> select * from a natural inner join b natural inner join c;a
---1
(1 row)
> > > oh, btw this select refused to use an SQL natural join among the 3
> > > relations - the server gives up and disconnects without warning.
> >
> > That sounds like a garden-variety bug. I'd be willing to look at it
> > if I had a complete example to follow, but I don't want to try to
> > reverse-engineer your table definitions...
>
> a join with 3 tables never seems to work:
>
> test=# create table a(a int);
> CREATE
> test=# create table b(a int);
> CREATE
> test=# create table c(a int);
> CREATE
> test=# insert into a values (1);
> INSERT 23734 1
> test=# insert into b values (1);
> INSERT 23744 1
> test=# insert into c values (1);
> INSERT 23736 1
> test=# select *
> test-# from a, b, c
> test-# where a.a = b.a AND
> test-# b.a = c.a;
> a | a | a
> ---+---+---
> 1 | 1 | 1
> (1 row)
> test=# select * from a natural inner join b natural inner join c;
> pqReadData() -- backend closed the channel unexpectedly.
> This probably means the backend terminated abnormally
> before or while processing the request.
> The connection to the server was lost. Attempting reset: Failed.
>
>
> alex
>
>
-- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610)
853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill,
Pennsylvania19026
