Using latest CVS sources with Linux 2.4 i586:
Comparing using domains versus traditional explicit field types.
Here's the control test:
test=# create table t1 (f varchar(5) not null);
CREATE
test=# insert into t1 values ('2');
INSERT 16626 1
test=# select * from t1 where f='2';f
---2
(1 row)
If I create a VARCHAR domain, everything works as expected.
test=# create domain typ varchar(5) not null;
CREATE DOMAIN
test=# create table t2 (f typ);
CREATE
test=# insert into t2 values ('2');
INSERT 16627 1
test=# select * from t2 where f='2';f
---2
(1 row)
Here's a control test for the same thing, except with CHAR:
test=# create table t1 (f char(5) not null);
CREATE
test=# insert into t1 values ('2');
INSERT 16639 1
test=# select * from t1 where f='2'; f
-------2
(1 row)
However, if I create a CHAR domain, I'm unable to query the value from the
table:
test=# create domain typ char(5) not null;
CREATE DOMAIN
test=# create table t2 (f typ);
CREATE
test=# insert into t2 values ('2');
INSERT 16640 1
test=# select * from t2 where f='2';f
---
(0 rows)
Even if I coerce the value to the correct domain:
test=# select * from t2 where f='2'::typ;f
---
(0 rows)
However, this works:
test=# select * from t2 where f='2'::char; f
-------2
(1 row)
Is this a bug? Is this correct behavior? Am I misunderstanding this?
Thanks!
Joel BURTON | joel@joelburton.com | joelburton.com | aim: wjoelburton
Knowledge Management & Technology Consultant
