On Tue, 19 Sep 2000, Vladimir V. Zolotych wrote:
> Hi all,
> Can you help me a bit ?
> The question is: how can I compare TEXT and CHAR(32) types ?
> More detailed description:
> my=> create table foo (tt text, cc char(32));
>
> CREATE
> my=> insert into foo values ('aa', 'ab');
>
> INSERT 27476810 1
> my=> insert into foo values ('aa', 'aa');
>
> INSERT 27476811 1
> my=> select * from foo where tt=cc;
>
> tt|cc
> --+--
> (0 rows)
Because you not compare 'aa' and 'aa' but
'aa' and 'aa '
^^^^^^^^^^^^^^^^^^^^^^
32 chars
try:
test=# select * from foo where tt::char = cc;
tt | cc
----+----------------------------------
aa | aa
(1 row)
Better is use varchar(32) for 'cc' if you want run this (tt=cc) query
often.
Karel
