Drop Constraint - Relation does not exists

Question

I'm trying to drop a table constraint using Postbird interface or the following SQL:

alter table devices 
drop constraint FK_473c90a9cf5f18226886e62a3b3

Both way, error is: constraint "fk_473c90a9cf5f18226886e62a3b3" of relation "devices" does not exist

Table structure

information_schema.table_constraints

Any idea?

Answer 1

here is the answer as per @clamp's reply:

alter table devices 
drop constraint "FK_473c90a9cf5f18226886e62a3b3"