src/Silex/Security/Core/Dbal/UserTable.php
private function _build()
    {
        $this->addColumn(
            'id', 'integer',
            array('unsigned' => true, 'autoincrement' => 'auto',)
        );
        $this->addColumn(
            'username', 'string',
            array('length' => 64, 'notnull' => true)
        );
        $this->addColumn(
            'email', 'string',
            array('length' => 127, 'notnull' => true)
        );
        $this->addColumn(
            'password', 'string',
            array('length' => 255, 'notnull' => true)
        );

        $this->setPrimaryKey(array('id'));
        $this->addUniqueIndex(array('username',));
        $this->addUniqueIndex(array('email',));
    }
private function _build()
    {
        $this->addColumn(
            'id', 'integer',
            array('unsigned' => true, 'autoincrement' => 'auto',)
        );
        $this->addColumn(
            'username', 'string',
            array('length' => 64, 'notnull' => true)
        );
        $this->addColumn(
            'email', 'string',
            array('length' => 127, 'notnull' => true)
        );
        $this->addColumn(
            'password', 'string',
            array('length' => 255, 'notnull' => true)
        );

        $this->setPrimaryKey(array('id'));
        $this->addUniqueIndex(array('username',));
        $this->addUniqueIndex(array('email',));
    }
Build table
@return void