org.apache.drill.exec.store.parquet.stat

Class ParquetFooterStatCollector

java.lang.Object

org.apache.drill.exec.store.parquet.stat.ParquetFooterStatCollector

All Implemented Interfaces:

ColumnStatCollector

public class ParquetFooterStatCollector
extends Object
implements ColumnStatCollector

Constructor Summary

Constructors

Constructor and Description
ParquetFooterStatCollector(org.apache.parquet.hadoop.metadata.ParquetMetadata footer, int rowGroupIndex, Map<String,String> implicitColValues, boolean autoCorrectCorruptDates, OptionManager options)

Method Summary

Methods

Modifier and Type	Method and Description
Map<SchemaPath,ColumnStatistics>	collectColStat(Set<SchemaPath> fields) Given a list of fields (SchemaPath), return mapping from field to its corresponding ColumnStatistics
static org.apache.parquet.column.statistics.Statistics	convertDateStatIfNecessary(org.apache.parquet.column.statistics.Statistics stat, ParquetReaderUtility.DateCorruptionStatus containsCorruptDates)

Methods inherited from class java.lang.Object

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

Constructor Detail

ParquetFooterStatCollector

public ParquetFooterStatCollector(org.apache.parquet.hadoop.metadata.ParquetMetadata footer,
                          int rowGroupIndex,
                          Map<String,String> implicitColValues,
                          boolean autoCorrectCorruptDates,
                          OptionManager options)

Method Detail

collectColStat

public Map<SchemaPath,ColumnStatistics> collectColStat(Set<SchemaPath> fields)

Description copied from interface: ColumnStatCollector

Given a list of fields (SchemaPath), return mapping from field to its corresponding ColumnStatistics

Specified by:

collectColStat in interface ColumnStatCollector

Returns:

convertDateStatIfNecessary

public static org.apache.parquet.column.statistics.Statistics convertDateStatIfNecessary(org.apache.parquet.column.statistics.Statistics stat,
                                                                         ParquetReaderUtility.DateCorruptionStatus containsCorruptDates)