Why isn't the connection made on itself?

Question

PostgreSQL

Hello.
Created a migration

Schema::create('records', function (Blueprint $table) {
            $table->increments('record_id');
            $table->integer('linked_record_id')->default('0');
            $table->integer('company_id');
            $table->integer('form_id')->default('0');
            $table->uuid('uuid');
            $table->timestamps();

            $table->foreign('linked_record_id')->references('record_id')->on('records');
            $table->foreign('company_id')->references('company_id')->on('companies');
            $table->foreign('form_id')->references('form_id')->on('forms');
        });

Falling with an error

[Illuminate\Database\QueryException]                                                               
 SQLSTATE[HY000]: General error: 1215 Cannot add foreign key constraint (SQL: alter table `records ` add constraint `records_linked_record_id_foreign` foreign key (`linked_record_id`) references `records` (`record_id`))

As I understand it, it swears, such that the fields are not of the same type. But they are both unteger, what's the matter?

Answer 1

$table->integer('linked_record_id')->unsiged();