> > 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