AutoCompact¶
AutoCompact
is a AutoCompactBase.
case object
AutoCompact
is a case object
in Scala which means it is a class that has exactly one instance (itself). A case object
is created lazily when it is referenced, like a lazy val
.
Learn more in Tour of Scala.
AutoCompact
is registered when TransactionalWrite
is requested to write data out and there are indeed new files added and it is not Optimize command.