From: | Joe Conway <mail(at)joeconway(dot)com> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | pgsql-hackers(at)postgreSQL(dot)org |
Subject: | Re: GROUP BY + join regression in 7.3 |
Date: | 2003-04-01 06:23:29 |
Message-ID: | 3E893061.4000501@joeconway.com |
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Lists: | pgsql-hackers |
Tom Lane wrote:
> Just out of curiosity ---
Here's what I get:
select * from t1
f1 f2
----------- -----------
1 1
2 2
(2 row(s) affected)
select * from t2
f2 f3
----------- -----------
1 3
(1 row(s) affected)
select t1.f2 from t2 right join t1 on t1.f2 = t2.f2 group by f2
Server: Msg 209, Level 16, State 1, Line 1
Ambiguous column name 'f2'.
select f2 from t2 right join t1 on t1.f2 = t2.f2 group by t1.f2
Server: Msg 209, Level 16, State 1, Line 1
Ambiguous column name 'f2'.
select f2 from t2 right join t1 on t1.f2 = t2.f2 group by f2
Server: Msg 209, Level 16, State 1, Line 1
Ambiguous column name 'f2'.
Server: Msg 209, Level 16, State 1, Line 1
Ambiguous column name 'f2'.
select t1.f2 from t2 right join t1 on t1.f2 = t2.f2 group by t1.f2
f2
-----------
1
2
(2 row(s) affected)
Any other variations you want to see?
Joe
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