On 4/19/22 11:03, aditya desai wrote:
> Thanks! Apologies! Looks like I was having issues with NULL values and
> UNIQUE index on user defined column.
>
> On Tue, Apr 19, 2022 at 10:00 PM Christophe Pettus <xof(at)thebuild(dot)com>
> wrote:
>
>
> > On Apr 19, 2022, at 09:27, aditya desai <admad123(at)gmail(dot)com> wrote:
> >
> > Hi,
> > Is there any way to create index on user defined type in
> Postgresql? Need to create index on bug_status in bug table.
> >
> > CREATE TYPE bug_status AS ENUM ('new', 'open', 'closed');
> >
> > CREATE TABLE bug (
> > id serial,
> > description text,
> > status bug_status
> > );
>
> It works right out of the box:
>
> xof=# CREATE TYPE bug_status AS ENUM ('new', 'open', 'closed');
> CREATE TYPE
> xof=# CREATE TABLE bug (
> id serial,
> description text,
> status bug_status
> );
> CREATE TABLE
> xof=# create index on bug(status);
> CREATE INDEX
> xof=#
>
I would have to wonder at the effectiveness an index on such a small
number of possible values.