com.facebook.presto.hive.parquet.predicate

Interface ParquetPredicate

All Known Implementing Classes:

TupleDomainParquetPredicate

public interface ParquetPredicate

Field Summary

Fields

Modifier and Type	Field and Description
static ParquetPredicate	TRUE

Method Summary

Modifier and Type	Method and Description
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.

Field Detail

TRUE

static final ParquetPredicate TRUE

Method Detail

matches

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.

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

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

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

Parameters:

dictionaries - dictionaries per column