cudf::io::parquet_metadata Class Reference

Information about content of a parquet file. More...

#include <parquet_metadata.hpp>

Public Types
using	key_value_metadata = std::unordered_map< std::string, std::string >
	Key-value metadata in the file footer.

Public Member Functions
	parquet_metadata (parquet_schema schema, int64_t num_rows, size_type num_rowgroups, key_value_metadata file_metadata)
	constructor More...
auto const &	schema () const
	Returns the parquet schema. More...
auto	num_rows () const
	Returns the number of rows of the root column. More...
auto	num_rowgroups () const
	Returns the number of rowgroups in the file. More...
auto const &	metadata () const
	Returns the Key value metadata in the file footer. More...

Detailed Description

Information about content of a parquet file.

Definition at line 158 of file parquet_metadata.hpp.

Constructor & Destructor Documentation

parquet_metadata()

cudf::io::parquet_metadata::parquet_metadata ( parquet_schema  schema, int64_t  num_rows, size_type  num_rowgroups, key_value_metadata  file_metadata  )

inline

constructor

Parameters

schema	parquet schema
num_rows	number of rows
num_rowgroups	number of row groups
file_metadata	key-value metadata in the file footer

Definition at line 171 of file parquet_metadata.hpp.

Member Function Documentation

metadata()

auto const& cudf::io::parquet_metadata::metadata ( ) const

inline

Returns the Key value metadata in the file footer.

Returns

Key value metadata as a map

Definition at line 209 of file parquet_metadata.hpp.

num_rowgroups()

auto cudf::io::parquet_metadata::num_rowgroups ( ) const

inline

Returns the number of rowgroups in the file.

Returns

Number of row groups

Definition at line 203 of file parquet_metadata.hpp.

num_rows()

auto cudf::io::parquet_metadata::num_rows ( ) const

inline

Returns the number of rows of the root column.

If a file contains list columns, nested columns can have a different number of rows.

Returns

Number of rows

Definition at line 196 of file parquet_metadata.hpp.

schema()

auto const& cudf::io::parquet_metadata::schema ( ) const

inline

Returns the parquet schema.

Returns

parquet schema

Definition at line 187 of file parquet_metadata.hpp.

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The documentation for this class was generated from the following file:

• parquet_metadata.hpp