scala - Scala Slick 2は複数のフィールドに参加しますか?

Question

以下の例のように複数のフィールドを結合するにはどうすればよいですか?

val ownerId = 1
val contactType = 1
...
val contact = for {
  (t, c) <- ContactTypes leftJoin Contacts on (_.id === _.typeId && _.ownerId === ownerId)
  if t.id === contactType
} yield (c.?, t)

Slick 2.0.1 でこれを達成するにはどうすればよいですか? 理想的には、この種のクエリを生成するには洗練されたものが必要です

SELECT
    x2."contact_id",
    x2."type_id",
    x2."owner_id",
    x2."value",
    x2."created_on",
    x2."updated_on",
    x3."id",
    x3."type",
    x3."model"
FROM
    (
        SELECT
            x4."id" AS "id",
            x4."type" AS "type",
            x4."model" AS "model"
        FROM
            "contact_types" x4
    )x3
LEFT OUTER JOIN(
    SELECT
        x5."created_on" AS "created_on",
        x5."value" AS "value",
        x5."contact_id" AS "contact_id",
        x5."updated_on" AS "updated_on",
        x5."type_id" AS "type_id",
        x5."owner_id" AS "owner_id"
    FROM
        "contacts" x5
)x2 ON x3."id" = x2."type_id" AND x2.owner_id = 1
WHERE
    (x3."id" = 3)

ON x3."id" = x2."type_id" AND x2.owner_id = 16に注意してください