com.facebook.presto.hive

Class StoragePartitionLoader.BucketSplitInfo

java.lang.Object

com.facebook.presto.hive.StoragePartitionLoader.BucketSplitInfo

Enclosing class:

StoragePartitionLoader

public static class StoragePartitionLoader.BucketSplitInfo
extends Object

Method Summary

Modifier and Type	Method and Description
static Optional<StoragePartitionLoader.BucketSplitInfo>	createBucketSplitInfo(Optional<HiveBucketHandle> bucketHandle, Optional<HiveBucketing.HiveBucketFilter> bucketFilter)
List<HiveColumnHandle>	getBucketColumns()
int	getReadBucketCount()
int	getTableBucketCount()
boolean	isTableBucketEnabled(int tableBucketNumber) Evaluates whether the provided table bucket number passes the bucket predicate.
boolean	isVirtuallyBucketed()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

createBucketSplitInfo

public static Optional<StoragePartitionLoader.BucketSplitInfo> createBucketSplitInfo(Optional<HiveBucketHandle> bucketHandle,
                                                                                     Optional<HiveBucketing.HiveBucketFilter> bucketFilter)

getBucketColumns

public List<HiveColumnHandle> getBucketColumns()

getTableBucketCount

public int getTableBucketCount()

getReadBucketCount

public int getReadBucketCount()

isVirtuallyBucketed

public boolean isVirtuallyBucketed()

isTableBucketEnabled

public boolean isTableBucketEnabled(int tableBucketNumber)

Evaluates whether the provided table bucket number passes the bucket predicate. A bucket predicate can be present in two cases:

• Filter on "$bucket" column. e.g. "$bucket" between 0 and 100
• Single-value equality filter on all bucket columns. e.g. for a table with two bucketing columns, bucketCol1 = 'a' AND bucketCol2 = 123