Re: Change from BIGINT to INT in prod.

On Thu, 2020-11-05 at 11:23 -0700, David G. Johnston wrote:
> > So when i try running alter table table_name alter column column_name type INT; , it is hanging and starts
providinga lock on the table.
 

It has to rewrite the table and needs an AccessExclusive lock.
You have to suspend all concurrent activity on that table.

> I'm not seeing the point of doing this specific conversion at all really

Exactly; this exercise is not necessary.
The few bytes you are saving are not worth the trouble.

Yours,
Laurenz Albe
-- 
+43-670-6056265
CYBERTEC PostgreSQL International GmbH
Gröhrmühlgasse 26, A-2700 Wiener Neustadt
Web: https://www.cybertec-postgresql.com