Package org.apache.iceberg.parquet
Class ParquetDictionaryRowGroupFilter
- java.lang.Object
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- org.apache.iceberg.parquet.ParquetDictionaryRowGroupFilter
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public class ParquetDictionaryRowGroupFilter extends java.lang.Object
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Constructor Summary
Constructors Constructor Description ParquetDictionaryRowGroupFilter(Schema schema, Expression unbound)
ParquetDictionaryRowGroupFilter(Schema schema, Expression unbound, boolean caseSensitive)
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Method Summary
All Methods Instance Methods Concrete Methods 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.
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Constructor Detail
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ParquetDictionaryRowGroupFilter
public ParquetDictionaryRowGroupFilter(Schema schema, Expression unbound)
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ParquetDictionaryRowGroupFilter
public ParquetDictionaryRowGroupFilter(Schema schema, Expression unbound, boolean caseSensitive)
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Method Detail
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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 filedictionaries
- a dictionary page read store- Returns:
- false if the file cannot contain rows that match the expression, true otherwise.
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