I tried to set as only biginter but it lost its autoincrement properties. So I tried adding auto-increment as well.
$table->changeColumn('id', 'biginteger', ['identity' => true])->update();
But it showed error.
PDOException: SQLSTATE[42704]: Undefined object: 7 ERROR: type "bigserial" does not exist
How is this possible for PostgreSQL?
After try 10 or more ways...
And ensure in config file add