Aggregate file-level statistics returned by ParquetReader::file_stats(). More...

#include <types.hpp>

Public Attributes
int64_t	file_size_bytes = 0
	Total file size on disk (bytes).

int64_t	total_rows = 0
	Total rows in the file.

int64_t	num_row_groups = 0
	Number of row groups.

int64_t	num_columns = 0
	Number of columns.

std::string	created_by
	"created_by" string from the footer.

double	compression_ratio = 1.0
	Overall uncompressed / compressed ratio.

double	bytes_per_row = 0.0
	Average file bytes per row.

std::vector< ColumnFileStats >	columns
	Per-column statistics.

Detailed Description

Aggregate file-level statistics returned by ParquetReader::file_stats().

Summarises row counts, byte sizes, compression ratios, and per-column metadata across all row groups in the file.

See also: ParquetReader::file_stats(), ColumnFileStats

Definition at line 259 of file types.hpp.

Member Data Documentation

◆ bytes_per_row

double signet::forge::FileStats::bytes_per_row = 0.0

Average file bytes per row.

Definition at line 266 of file types.hpp.

◆ columns

std::vector<ColumnFileStats> signet::forge::FileStats::columns

Per-column statistics.

Definition at line 268 of file types.hpp.

◆ compression_ratio

double signet::forge::FileStats::compression_ratio = 1.0

Overall uncompressed / compressed ratio.

Definition at line 265 of file types.hpp.

◆ created_by

std::string signet::forge::FileStats::created_by

"created_by" string from the footer.

Definition at line 264 of file types.hpp.

◆ file_size_bytes

int64_t signet::forge::FileStats::file_size_bytes = 0

Total file size on disk (bytes).

Definition at line 260 of file types.hpp.

◆ num_columns

int64_t signet::forge::FileStats::num_columns = 0

Number of columns.

Definition at line 263 of file types.hpp.

◆ num_row_groups

int64_t signet::forge::FileStats::num_row_groups = 0

Number of row groups.

Definition at line 262 of file types.hpp.

◆ total_rows

int64_t signet::forge::FileStats::total_rows = 0

Total rows in the file.

Definition at line 261 of file types.hpp.

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

include/signet/types.hpp

Public Attributes