Struct parquet::file::metadata::FileMetaData

pub struct FileMetaData { /* fields omitted */ }

Metadata for a Parquet file.

Methods

impl FileMetaData

pub fn new(     version: i32,     num_rows: i64,     created_by: Option<String>,     schema: TypePtr,     schema_descr: SchemaDescPtr ) -> Self

Creates new file metadata.

pub fn version(&self) -> i32

Returns version of this file.

pub fn num_rows(&self) -> i64

Returns number of rows in the file.

pub fn created_by(&self) -> &Option<String>

String message for application that wrote this file.

This should have the following format: <application> version <application version> (build <application build hash>).

parquet-mr version 1.8.0 (build 0fda28af84b9746396014ad6a415b90592a98b3b)

pub fn schema(&self) -> &SchemaType

Returns Parquet ['Type`] that describes schema in this file.

pub fn schema_descr(&self) -> &SchemaDescriptor

Returns a reference to schema descriptor.

pub fn schema_descr_ptr(&self) -> SchemaDescPtr

Returns reference counted clone for schema descriptor.