Slick 3.2.3编译嵌套更新查询

Question

我想使用嵌套更新来编译查询，但出现编译错误。

我有此代码：

trait TestSlick {

  val profile: slick.jdbc.JdbcProfile
  import profile.api._

  class Entity1(tag: Tag) extends Table[(Long, String)](tag, "ENTITY1") {
    def id = column[Long]("KEY", O.PrimaryKey)
    def value = column[String]("VALUE")
    def * = (id, value)
  }
  val entity1Table = TableQuery[Entity1]

  class Entity2(tag: Tag) extends Table[(Long, String)](tag, "ENTITY2") {
    def id = column[Long]("KEY", O.PrimaryKey)
    def value = column[String]("VALUE")
    def * = (id, value)
  }
  val entity2Table = TableQuery[Entity2]

  def _getEntity1ById(id: Rep[Long]) = entity1Table.filter(_.id === id).map(_.value)
  def _getEntity2ById(id: Rep[Long]) = entity2Table.filter(_.id === id).map(_.value)

  def _getEntitiesTuple(idE1: Rep[Long], idE2: Rep[Long], value1: String, value2: String) = for {
    e1 <- _getEntity1ById(idE1).update(value1)
    e2 <- _getEntity2ById(idE1).update(value2)
  } yield (e1, e2)

  val getEntitiesTuple = Compiled(_getEntitiesTuple _)
}

当我尝试编译此特征时，出现以下错误：

Error:(35, 34) Computation of type (TestSlick.this.profile.api.Rep[Long], TestSlick.this.profile.api.Rep[Long], String, String) => slick.dbio.DBIOAction[(Int, Int),slick.dbio.NoStream,slick.dbio.Effect.Write with slick.dbio.Effect.Write] cannot be compiled (as type C)
val getEntitiesTuple = Compiled(_getEntitiesTuple _)

和

Error:(35, 34) not enough arguments for method apply: (implicit compilable: slick.lifted.Compilable[(TestSlick.this.profile.api.Rep[Long], TestSlick.this.profile.api.Rep[Long], String, String) => slick.dbio.DBIOAction[(Int, Int),slick.dbio.NoStream,slick.dbio.Effect.Write with slick.dbio.Effect.Write],C], implicit profile: slick.basic.BasicProfile)C in object Compiled.
Unspecified value parameters compilable, profile.
val getEntitiesTuple = Compiled(_getEntitiesTuple _)

但我不知道为什么。

在没有update的情况下，编译效果很好。