Tom,
OK here is a test case:
create table test1 (t1a int);
create table test2 (t2a int);
create table test3 (t3a int);
SELECT x2.t2a
FROM ((test1 t1 LEFT JOIN test2 t2 ON (t1.t1a = t2.t2a)) AS x1
LEFT OUTER JOIN test3 t3 ON (x1.t2a = t3.t3a)) AS x2
WHERE x2.t2a = 1;
The select works under 7.2, but gives the following error in 7.3:
ERROR: JOIN/ON clause refers to "x1", which is not part of JOIN
thanks,
--Barry
Tom Lane wrote:
> Barry Lind <barry@xythos.com> writes:
>
>>In testing Neil's PREPARE/EXECUTE patch on my test query, I found the
>>parser complains that this query is not valid when using current
>>sources. The error I get is:
>
>
>>psql:testorig.sql:1: ERROR: JOIN/ON clause refers to "xf2", which is
>>not part of JOIN
>
>
> Hmm. I have an open bug with sub-SELECTs inside a JOIN, but this
> example doesn't look like it would trigger that.
>
>
>>I think the sql is valid (at least it has worked in 7.1 and 7.2). Is
>>this a bug?
>
>
> Dunno. Give me a test case (and no, I am *not* going to try to
> reverse-engineer table schemas from that SELECT).
>
> regards, tom lane
>
