Struct parquet::file::metadata::RowGroupMetaData

pub struct RowGroupMetaData { /* fields omitted */ }

Metadata for a row group.

Methods

impl RowGroupMetaData

pub fn num_columns(&self) -> usize

Number of columns in this row group.

pub fn column(&self, i: usize) -> &ColumnChunkMetaData

Returns column chunk metadata for ith column.

pub fn columns(&self) -> &[ColumnChunkMetaDataPtr]

Returns slice of column chunk metadata Rc pointers.

pub fn num_rows(&self) -> i64

Number of rows in this row group.

pub fn total_byte_size(&self) -> i64

Total byte size of all uncompressed column data in this row group.

pub fn schema_descr(&self) -> &SchemaDescriptor

Returns reference to a schema descriptor.

pub fn schema_descr_ptr(&self) -> SchemaDescPtr

Returns reference counted clone of schema descriptor.

pub fn from_thrift(     schema_descr: SchemaDescPtr,     rg: RowGroup ) -> Result<RowGroupMetaData>

Method to convert from Thrift.