SnapshotStatistics

@Evolving public interface SnapshotStatistics

Provides statistics and metadata about a Snapshot.

Method Summary

Modifier and Type

Method

Description

Optional<Snapshot.ChecksumWriteMode>

getChecksumWriteMode()

Determines the appropriate mode for writing a checksum file for this Snapshot.

Method Details
- getChecksumWriteMode
  
  Optional<Snapshot.ChecksumWriteMode> getChecksumWriteMode()
  Determines the appropriate mode for writing a checksum file for this Snapshot.
  The returned value can be passed to Snapshot.writeChecksum(io.delta.kernel.engine.Engine, io.delta.kernel.Snapshot.ChecksumWriteMode) to write the checksum file using the most efficient approach available:
  
  Optional.empty() - Checksum already exists, no write needed
  Optional of Snapshot.ChecksumWriteMode.SIMPLE - Fast write using in-memory CRC info
  Optional of Snapshot.ChecksumWriteMode.FULL - Requires log replay to compute CRC info
  Returns:
  
  the recommended checksum write mode, or empty if checksum already exists