Define a unique primary key based on 2 columns

Question

I would like to define a unique key for records based on 2 columns : \'id\' and \'language\'

to let the user submits the following strings : id=1 language=en value=bl

Answer 1

Just like @rogal111 said, but if a primary key already exists then you'll want to do this

ALTER TABLE sections DROP PRIMARY KEY, ADD PRIMARY KEY(id, workspace_id, section_key);