Its probably not in this case.
There is a method called on pq as receiver and then reassigned to pq, beware the =! Also in the documentation you linked, there is nothing that has a method Column() nor can I find it in sql.
Also even if it is SQL, then it is not a valid statement on its own. There is missing quite a lot then.
But you are right, and I am sorry not having considered this before, if this is really a piece of code from a project of your working place (or even bought code that you have source access to), it might violate NDAs to show it in public.