Struct ParquetMetaData

pub struct ParquetMetaData { /* private fields */ }

Global Parquet metadata.

Implementations

impl ParquetMetaData

pub fn new( file_metadata: FileMetaData, row_groups: Vec<RowGroupMetaData>, ) -> Self

Creates Parquet metadata from file metadata and a list of row group metadata

pub fn new_with_page_index( file_metadata: FileMetaData, row_groups: Vec<RowGroupMetaData>, column_index: Option<ParquetColumnIndex>, offset_index: Option<ParquetOffsetIndex>, ) -> Self

Creates Parquet metadata from file metadata, a list of row group metadata, and the column index structures.

pub fn file_metadata(&self) -> &FileMetaData

Returns file metadata as reference.

pub fn num_row_groups(&self) -> usize

Returns number of row groups in this file.

pub fn row_group(&self, i: usize) -> &RowGroupMetaData

Returns row group metadata for ith position. Position should be less than number of row groups num_row_groups.

pub fn row_groups(&self) -> &[RowGroupMetaData]

Returns slice of row groups in this file.

pub fn page_indexes(&self) -> Option<&ParquetColumnIndex>

👎Deprecated: Use Self::column_index

Returns page indexes in this file.

pub fn column_index(&self) -> Option<&ParquetColumnIndex>

Returns the column index for this file if loaded

pub fn offset_indexes(&self) -> Option<&ParquetOffsetIndex>

👎Deprecated: Use Self::offset_index

Returns the offset index for this file if loaded

pub fn offset_index(&self) -> Option<&ParquetOffsetIndex>

Returns offset indexes in this file.

Trait Implementations

impl Clone for ParquetMetaData

fn clone(&self) -> ParquetMetaData

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ParquetMetaData

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.