pyarrow.parquet.RowGroupMetaData#
- class pyarrow.parquet.RowGroupMetaData#
Bases:
_WeakrefableMetadata for a single row group.
- __init__(*args, **kwargs)#
Methods
__init__(*args, **kwargs)column(self, int i)Get column metadata at given index.
equals(self, RowGroupMetaData other)Return whether the two row group metadata objects are equal.
to_dict(self)Get dictionary representation of the row group metadata.
Attributes
Number of columns in this row group (int).
Number of rows in this row group (int).
Columns the row group is sorted by (tuple of
SortingColumn)).Total byte size of all the uncompressed column data in this row group (int).
- column(self, int i)#
Get column metadata at given index.
- Parameters:
- i
int Index of column to get metadata for.
- i
- Returns:
ColumnChunkMetaDataMetadata for column within this chunk.
- equals(self, RowGroupMetaData other)#
Return whether the two row group metadata objects are equal.
- Parameters:
- other
RowGroupMetaData Metadata to compare against.
- other
- Returns:
- are_equalbool
- num_columns#
Number of columns in this row group (int).
- num_rows#
Number of rows in this row group (int).
- sorting_columns#
Columns the row group is sorted by (tuple of
SortingColumn)).
- to_dict(self)#
Get dictionary representation of the row group metadata.
- Returns:
dictDictionary with a key for each attribute of this class.
- total_byte_size#
Total byte size of all the uncompressed column data in this row group (int).