The following bug has been logged online: Bug reference: 4748 Logged by: Roman Kononov Email address: kono...@ftml.net PostgreSQL version: 8.3.7 Operating system: GNU/Linux x86_64 Description: hash join and sort-merge join make different results Details:
test-std=# create table t(s int,i interval); CREATE TABLE test-std=# insert into t values (0,'30 days'), (1,'1 month'); INSERT 0 2 test-std=# select * from t as a, t as b where a.i=b.i; s | i | s | i ---+---------+---+--------- 0 | 30 days | 0 | 30 days 0 | 30 days | 1 | 1 mon 1 | 1 mon | 0 | 30 days 1 | 1 mon | 1 | 1 mon (4 rows) test-std=# analyze; ANALYZE test-std=# select * from t as a, t as b where a.i=b.i; s | i | s | i ---+---------+---+--------- 0 | 30 days | 0 | 30 days 1 | 1 mon | 1 | 1 mon (2 rows) -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs
