I discovered interesting issue with PostgreSQL transaction isolation. When transaction is in repeatable read isolation level, I can't see table which was created after transaction obtained snapshot. But I can run DML statements with this table. See example below.
Session 1
# begin transaction isolation level repeatable read;
BEGIN
# \dt
No relations found.
Session 2
# create table tmp (i int not null);
CREATE TABLE
# insert into tmp values (1);
INSERT 0 1
# \dt
No relations found.
# select * from tmp;
i
---
(0 rows)
# insert into tmp values (2);
INSERT 0 1
# select * from tmp;
i
---
2
(1 row)
# commit;
COMMIT
Is it a bug?
------ Alexander Korotkov Postgres Professional: http://www.postgrespro.com The Russian Postgres Company
