com.facebook.presto.hive.parquet.predicate

Class TupleDomainParquetPredicate

java.lang.Object

com.facebook.presto.hive.parquet.predicate.TupleDomainParquetPredicate

All Implemented Interfaces:

ParquetPredicate

public class TupleDomainParquetPredicate
extends Object
implements ParquetPredicate

Field Summary

Fields inherited from interface com.facebook.presto.hive.parquet.predicate.ParquetPredicate

TRUE

Constructor Summary

Constructors

Constructor and Description
TupleDomainParquetPredicate(TupleDomain<parquet.column.ColumnDescriptor> effectivePredicate, List<RichColumnDescriptor> columns)

Method Summary

Modifier and Type	Method and Description
static Domain	getDomain(Type type, long rowCount, parquet.column.statistics.Statistics<?> statistics)
static Domain	getDomain(Type type, ParquetDictionaryDescriptor dictionaryDescriptor)
boolean	matches(long numberOfRows, Map<parquet.column.ColumnDescriptor,parquet.column.statistics.Statistics<?>> statistics) Should the Parquet Reader process a file section with the specified statistics.
boolean	matches(Map<parquet.column.ColumnDescriptor,ParquetDictionaryDescriptor> dictionaries) Should the Parquet Reader process a file section with the specified dictionary.

Methods inherited from class java.lang.Object

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

Constructor Detail

TupleDomainParquetPredicate

public TupleDomainParquetPredicate(TupleDomain<parquet.column.ColumnDescriptor> effectivePredicate,
                                   List<RichColumnDescriptor> columns)

Method Detail

matches

public boolean matches(long numberOfRows,
                       Map<parquet.column.ColumnDescriptor,parquet.column.statistics.Statistics<?>> statistics)

Description copied from interface: ParquetPredicate

Should the Parquet Reader process a file section with the specified statistics.

Specified by:

matches in interface ParquetPredicate

Parameters:

numberOfRows - the number of rows in the segment; this can be used with Statistics to determine if a column is only null

statistics - column statistics

matches

public boolean matches(Map<parquet.column.ColumnDescriptor,ParquetDictionaryDescriptor> dictionaries)

Description copied from interface: ParquetPredicate

Should the Parquet Reader process a file section with the specified dictionary.

Specified by:

matches in interface ParquetPredicate

Parameters:

dictionaries - dictionaries per column

getDomain

public static Domain getDomain(Type type,
                               long rowCount,
                               parquet.column.statistics.Statistics<?> statistics)

getDomain

public static Domain getDomain(Type type,
                               ParquetDictionaryDescriptor dictionaryDescriptor)