trait UninitializedCheckpointProvider extends AnyRef
Represents basic information about a checkpoint. This is the info we always can know about a checkpoint, without doing any additional I/O.
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abstract
def
topLevelFileIndex: Option[DeltaLogFileIndex]
File index which could help derive actions stored in top level files for the checkpoint.
File index which could help derive actions stored in top level files for the checkpoint. This could be used to get Protocol, Metadata etc from a checkpoint. This could also be used if we want to shallow copy a checkpoint.
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abstract
def
topLevelFiles: Seq[FileStatus]
Top level files that represents this checkpoint.
Top level files that represents this checkpoint. These files could be reused again to initialize the CheckpointProvider.
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abstract
def
version: Long
Checkpoint version
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def
isEmpty: Boolean
True if the checkpoint provider is empty (does not refer to a valid checkpoint)
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