ParquetDictionaryRowGroupFilter

java.lang.Object

org.apache.iceberg.parquet.ParquetDictionaryRowGroupFilter

public class ParquetDictionaryRowGroupFilter extends Object

Constructor Summary

Constructors

Constructor

Description

ParquetDictionaryRowGroupFilter(Schema schema, Expression unbound)

ParquetDictionaryRowGroupFilter(Schema schema, Expression unbound, boolean caseSensitive)
Method Summary

Modifier and Type

Method

Description

boolean

shouldRead(org.apache.parquet.schema.MessageType fileSchema, org.apache.parquet.hadoop.metadata.BlockMetaData rowGroup, org.apache.parquet.column.page.DictionaryPageReadStore dictionaries)

Test whether the dictionaries for a row group may contain records that match the expression.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- ParquetDictionaryRowGroupFilter
  
  public ParquetDictionaryRowGroupFilter(Schema schema, Expression unbound)
- ParquetDictionaryRowGroupFilter
  
  public ParquetDictionaryRowGroupFilter(Schema schema, Expression unbound, boolean caseSensitive)
Method Details
- shouldRead
  
  public boolean shouldRead(org.apache.parquet.schema.MessageType fileSchema, org.apache.parquet.hadoop.metadata.BlockMetaData rowGroup, org.apache.parquet.column.page.DictionaryPageReadStore dictionaries)
  
  Test whether the dictionaries for a row group may contain records that match the expression.
  
  Parameters:
  
  fileSchema - schema for the Parquet file
  
  dictionaries - a dictionary page read store
  
  Returns:
  
  false if the file cannot contain rows that match the expression, true otherwise.