On Tuesday, January 23, 2024, PG Bug reporting form <
noreply@postgresql.org> wrote:
The following bug has been logged on the website:
Bug reference: 18307
Logged by: RekGRpth
Email address: rekgrpth@gmail.com
PostgreSQL version: 16.1
Operating system: docker alpine
Description:
create table t(i int);
explain (costs off) select * from t join t tt on t.xmin = tt.xmin;
QUERY PLAN
---------------------------------
Hash Join
Hash Cond: (t.xmin = tt.xmin)
-> Seq Scan on t
-> Hash
-> Seq Scan on t tt
(5 rows)
explain (costs off) select * from t join t tt using (xmin);
ERROR: column "xmin" specified in USING clause does not exist in left table
I don’t this being worth the effort to change, and really seems like completely expected behavior. “Select *” doesn’t output xmin, it requires explicit table qualification to see it. This is the same thing.
David J.
