Struct parquet::file::metadata::RowGroupMetaData [−][src]
pub struct RowGroupMetaData { /* fields omitted */ }Metadata for a row group.
Methods
impl RowGroupMetaData[src]
impl RowGroupMetaDatapub fn num_columns(&self) -> usize[src]
pub fn num_columns(&self) -> usizeNumber of columns in this row group.
pub fn column(&self, i: usize) -> &ColumnChunkMetaData[src]
pub fn column(&self, i: usize) -> &ColumnChunkMetaDataReturns column chunk metadata for ith column.
pub fn columns(&self) -> &[ColumnChunkMetaDataPtr][src]
pub fn columns(&self) -> &[ColumnChunkMetaDataPtr]Returns slice of column chunk metadata Rc pointers.
pub fn num_rows(&self) -> i64[src]
pub fn num_rows(&self) -> i64Number of rows in this row group.
pub fn total_byte_size(&self) -> i64[src]
pub fn total_byte_size(&self) -> i64Total byte size of all uncompressed column data in this row group.
pub fn schema_descr(&self) -> &SchemaDescriptor[src]
pub fn schema_descr(&self) -> &SchemaDescriptorReturns reference to a schema descriptor.
pub fn schema_descr_ptr(&self) -> SchemaDescPtr[src]
pub fn schema_descr_ptr(&self) -> SchemaDescPtrReturns reference counted clone of schema descriptor.
pub fn from_thrift(
schema_descr: SchemaDescPtr,
rg: RowGroup
) -> Result<RowGroupMetaData>[src]
pub fn from_thrift(
schema_descr: SchemaDescPtr,
rg: RowGroup
) -> Result<RowGroupMetaData>Method to convert from Thrift.
Auto Trait Implementations
impl !Send for RowGroupMetaData
impl !Send for RowGroupMetaDataimpl !Sync for RowGroupMetaData
impl !Sync for RowGroupMetaData