PartitionStatisticsScan

All Known Implementing Classes:: BasePartitionStatisticsScan

public interface PartitionStatisticsScan

API for configuring partition statistics scan.

Method Summary

Modifier and Type

Method

Description

PartitionStatisticsScan

filter(Expression filter)

Create a new scan from the results of this, where partitions are filtered by the Expression.

PartitionStatisticsScan

project(Schema schema)

Create a new scan from this with the schema as its projection.

CloseableIterable<PartitionStatistics>

scan()

Scans a partition statistics file belonging to a particular snapshot

PartitionStatisticsScan

useSnapshot(long snapshotId)

Create a new scan from this scan's configuration that will use the given snapshot by ID.

Method Details
- useSnapshot
  
  PartitionStatisticsScan useSnapshot(long snapshotId)
  
  Create a new scan from this scan's configuration that will use the given snapshot by ID.
  
  Parameters:
  
  snapshotId - a snapshot ID
  
  Returns:
  
  a new scan based on this with the given snapshot ID
  
  Throws:
  
  IllegalArgumentException - if the snapshot cannot be found
- filter
  
  PartitionStatisticsScan filter(Expression filter)
  
  Create a new scan from the results of this, where partitions are filtered by the Expression.
  
  Parameters:
  
  filter - a filter expression
  
  Returns:
  
  a new scan based on this with results filtered by the expression
- project
  
  PartitionStatisticsScan project(Schema schema)
  
  Create a new scan from this with the schema as its projection.
  
  Parameters:
  
  schema - a projection schema
  
  Returns:
  
  a new scan based on this with the given projection
- scan
  
  CloseableIterable<PartitionStatistics> scan()
  
  Scans a partition statistics file belonging to a particular snapshot
  
  Returns:
  
  an Iterable of partition statistics