pyarrow.parquet.RowGroupMetaData#
- class pyarrow.parquet.RowGroupMetaData#
Bases:
pyarrow.lib._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 represenation of the row group metadata.
Attributes
Number of columns in this row group (int).
Number of rows in this row group (int).
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).
- to_dict(self)#
Get dictionary represenation 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).