Scala:如何使用在两个表之间更改的字段的值添加列

import slick.jdbc.MySQLProfile.api._

// 定义表的映射
case class Table1(id: Int, value: String)
class Table1s(tag: Tag) extends Table[Table1](tag, "table1") {
  def id = column[Int]("id", O.PrimaryKey)
  def value = column[String]("value")
  def * = (id, value) <> (Table1.tupled, Table1.unapply)
}
val table1s = TableQuery[Table1s]

case class Table2(id: Int, value: String)
class Table2s(tag: Tag) extends Table[Table2](tag, "table2") {
  def id = column[Int]("id", O.PrimaryKey)
  def value = column[String]("value")
  def * = (id, value) <> (Table2.tupled, Table2.unapply)
}
val table2s = TableQuery[Table2s]

// 创建数据库连接
val db = Database.forConfig("mydb")

// 定义需要更改的字段值和添加的列
val newValue = "new value"
val newColumn = "new_column"

// 执行更新操作
val updateAction = for {
  t1 <- table1s if t1.id === 1
  t2 <- table2s if t2.id === t1.id
} yield (t1.value, t2.value)

val updateQuery = updateAction.update((newValue, newValue))

// 执行添加列操作
val addColumnQuery = sqlu"ALTER TABLE table1 ADD COLUMN $newColumn VARCHAR(255)"

// 执行更新和添加列操作
val updateAndAddColumnAction = DBIO.seq(updateQuery, addColumnQuery)

val result = db.run(updateAndAddColumnAction)

// 处理结果
result.onComplete {
  case Success(_) => println("更新和添加列操作成功")
  case Failure(error) => println(s"更新和添加列操作失败：${error.getMessage}")
}