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1.  final def !=(arg0: Any): Boolean

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2.  final def ##: Int

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3.  final def ==(arg0: Any): Boolean

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4.  final def asInstanceOf[T0]: T0

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5.  def clone(): AnyRef

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6.  final def eq(arg0: AnyRef): Boolean

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7.  def finalize(): Unit

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8.  final def getClass(): Class[_ <: AnyRef]

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9.  final def isInstanceOf[T0]: Boolean

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10.  final def ne(arg0: AnyRef): Boolean

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11.  final def notify(): Unit

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12.  final def notifyAll(): Unit

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13.  def productElementNames: Iterator[String]

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    Product

14.  def removeFeatureTracesIfNeeded(): Boolean

    To remove the feature we need to truncate all history prior to the atomic cleanup version.

    To remove the feature we need to truncate all history prior to the atomic cleanup version. For this cleanup operation we use a shorter log retention period of 24 hours as defined in (delta.dropFeatureTruncateHistory.retentionDuration). The history truncation here needs to adhere to all the invariants established by the CheckpointProtectionTableFeature, similarly to any other metadata cleanup invocations (see doc in CheckpointProtectionTableFeature and REQUIRE_CHECKPOINT_PROTECTION_BEFORE_VERSION).

    The pre-downgrade process here mimics the downgrade process of the legacy drop feature implementation for features with requiresHistoryProtection=true.

    Note, this feature can only be dropped with the TRUNCATE HISTORY option. Therefore, the removal of CheckpointProtection does not require the addition of CheckpointProtection to protect history.

    Always returns false since we do not perform any modifications that require history expiration. This allows the drop process to proceed immediately after we cleanup the history prior to requireCheckpointProtectionBeforeVersion.

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    CheckpointProtectionPreDowngradeCommand → PreDowngradeTableFeatureCommand

15.  final def synchronized[T0](arg0: => T0): T0

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16.  val table: DeltaTableV2
17.  final def wait(): Unit

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18.  final def wait(arg0: Long, arg1: Int): Unit

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19.  final def wait(arg0: Long): Unit

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