Uses of Interface
org.apache.orc.ColumnStatistics

Packages that use ColumnStatistics

Package	Description
org.apache.orc
org.apache.orc.impl
org.apache.orc.impl.writer

Uses of ColumnStatistics in org.apache.orc

Subinterfaces of ColumnStatistics in org.apache.orc

Modifier and Type	Interface	Description
interface	BinaryColumnStatistics	Statistics for binary columns.
interface	BooleanColumnStatistics	Statistics for boolean columns.
interface	CollectionColumnStatistics	Statistics for all of collections such as Map and List.
interface	DateColumnStatistics	Statistics for DATE columns.
interface	DecimalColumnStatistics	Statistics for decimal columns.
interface	DoubleColumnStatistics	Statistics for float and double columns.
interface	GeospatialColumnStatistics
interface	IntegerColumnStatistics	Statistics for all of the integer columns, such as byte, short, int, and long.
interface	StringColumnStatistics	Statistics for string columns.
interface	TimestampColumnStatistics	Statistics for Timestamp columns.

Methods in org.apache.orc that return ColumnStatistics

Modifier and Type	Method	Description
ColumnStatistics[]	StripeStatistics.getColumnStatistics()	Return list of column statistics
ColumnStatistics[]	Reader.getStatistics()	Get the statistics about the columns in the file.
ColumnStatistics[]	Writer.getStatistics()	Get the statistics about the columns in the file.

Uses of ColumnStatistics in org.apache.orc.impl

Classes in org.apache.orc.impl that implement ColumnStatistics

Modifier and Type	Class	Description
class	ColumnStatisticsImpl
protected static final class	ColumnStatisticsImpl.BinaryStatisticsImpl
protected static final class	ColumnStatisticsImpl.StringStatisticsImpl

Methods in org.apache.orc.impl that return ColumnStatistics

Modifier and Type	Method	Description
ColumnStatistics[]	ReaderImpl.deserializeStats(TypeDescription schema, List<OrcProto.ColumnStatistics> fileStats)
ColumnStatistics[]	ReaderImpl.getStatistics()
ColumnStatistics[]	WriterImpl.getStatistics()

Methods in org.apache.orc.impl with parameters of type ColumnStatistics

Modifier and Type	Method	Description
static org.apache.hadoop.hive.ql.io.sarg.SearchArgument.TruthValue	RecordReaderImpl.evaluatePredicate(ColumnStatistics stats, org.apache.hadoop.hive.ql.io.sarg.PredicateLeaf predicate, BloomFilter bloomFilter)	Evaluate a predicate with respect to the statistics from the column that is referenced in the predicate.
static org.apache.hadoop.hive.ql.io.sarg.SearchArgument.TruthValue	RecordReaderImpl.evaluatePredicate(ColumnStatistics stats, org.apache.hadoop.hive.ql.io.sarg.PredicateLeaf predicate, BloomFilter bloomFilter, boolean useUTCTimestamp)	Evaluate a predicate with respect to the statistics from the column that is referenced in the predicate.

Uses of ColumnStatistics in org.apache.orc.impl.writer

Methods in org.apache.orc.impl.writer with parameters of type ColumnStatistics

Modifier and Type	Method	Description
void	EncryptionTreeWriter.getCurrentStatistics(ColumnStatistics[] output)
void	ListTreeWriter.getCurrentStatistics(ColumnStatistics[] output)
void	MapTreeWriter.getCurrentStatistics(ColumnStatistics[] output)
void	StructTreeWriter.getCurrentStatistics(ColumnStatistics[] output)
void	TreeWriter.getCurrentStatistics(ColumnStatistics[] output)	Get the current file statistics for each column.
void	TreeWriterBase.getCurrentStatistics(ColumnStatistics[] output)
void	UnionTreeWriter.getCurrentStatistics(ColumnStatistics[] output)