How to change a PG column to NULLABLE TRUE?

Question

How can I accomplish this using Postgres? I\'ve tried the code below but it doesn\'t work:

ALTER TABLE mytable ALTER COLUMN mycolumn BIGINT NULL; 
         


        

Answer 1

From the fine manual:

ALTER TABLE mytable ALTER COLUMN mycolumn DROP NOT NULL;

There's no need to specify the type when you're just changing the nullability.