How to unlock columns in pgAdmin

Question

I want to unlock the columns which appearing in the following pic:

https://i.sstatic.net/3F7cb.png

I know that the answer is make id a primary key. but the problem here is that I can't make id a primary key because there are two rows empty in id column and I can't delete these rows because the column locked! Please try to help me. Thank you very much

Answer 1

You cannot update or delete rows if you don't have primary key. That is the reason they're locked. It's impossible to identify rows uniquely for update/delete queries to run.

Answer 2

It happens when we have not turn on the primary key on our column of any which we want to make primary key . just go to the properties of the table and turn on the primary key of your column which you want to make primary key.