Issue type:

[x] question
[ ] bug report
[ ] feature request
[ ] documentation issue

Database system/driver:

[ ] cordova
[ ] mongodb
[ ] mssql
[ ] mysql / mariadb
[ ] oracle
[x] postgres
[ ] cockroachdb
[ ] sqlite
[ ] sqljs
[ ] react-native
[ ] expo

TypeORM version:

[x] latest
[ ] @next
[ ] 0.x.x (or put your version here)

Steps to reproduce or a small repository showing the problem:

I have some custom UI logic which takes into consideration names of foreign keys.
TypeORM automatically gives random FK names like FkC6Cc2C34Bd5420Cf0F3Fe38695D which seems to be different after each DB re-creation and similar way for PKs like Pk51F365875Ce04758B07Bc160204.

Having for example

@Entity()
export class WebsiteEmail {
  @PrimaryGeneratedColumn()
  id: number

  @ManyToOne(type => Website)
  @JoinColumn()
  website: Website
  @RelationId((self: WebsiteEmail) => self.website)
  websiteId: number

  @Column()
  address: string
}

I'm interested in both FK/PK naming strategy and manual FK/PK name override. Reading documentation showed only JoinColumn name overrides or I've missed the part about FK/PK names...

How to specify FK name for website: Website to be fk_website_email_website_id and PK name for id: number to be pk_website_email_id ?

update 1:
There is some givenName property in the source code. Not sure how to pass there a value from attributes yet.