Module parquet::file::metadata [−][src]
Contains information about available Parquet metadata.
The hierarchy of metadata is as follows:
ParquetMetaData
contains FileMetaData
and zero or more RowGroupMetaData
for each row group.
FileMetaData
includes file version, application specific metadata.
Each RowGroupMetaData
contains information about row group and one or more
ColumnChunkMetaData
for each column chunk.
ColumnChunkMetaData
has information about column chunk (primitive leaf column),
including encoding/compression, number of values, etc.
Structs
ColumnChunkMetaData |
Metadata for a column chunk. |
FileMetaData |
Metadata for a Parquet file. |
ParquetMetaData |
Global Parquet metadata. |
RowGroupMetaData |
Metadata for a row group. |
Type Definitions
ColumnChunkMetaDataPtr |
Reference counted pointer for |
FileMetaDataPtr |
Reference counted pointer for |
ParquetMetaDataPtr |
Reference counted pointer for |
RowGroupMetaDataPtr |
Reference counted pointer for |