Purpose of a foreign key name

Question

I am creating tables for a system I am developing and when entering the part of adding foreign key through the interface of PostgreSQL 9.3.17 I noticed you have the field nome to identify this key, I never paid much attention to this and always put the name of the key with the same name as the table column.

The addition screen with the input name is like this:

The moment a key is added its name is displayed this way:

• What is the purpose of the foreign key name?
• What may entail in the future by neglecting the use of this name?

Answer 1

• What is the purpose of the foreign key name?

The intuitive of the foreign key name, is to facilitate the understanding of the relations with other tables.

• What may entail in the future by neglecting the use of this name?

There are not many problems when neglecting the use of this name, of course, it is a good practice to always use names that facilitate the understanding of the relationship with other tables. To facilitate understanding of another DBA that may be serviced after you, just imagine one example. You create multiple relationships with address table, orders, and customers, and place the foreign key name as ck, pk, te. Of course it is an inappropriate use of foreign key name.