Struct parquet::file::metadata::RowGroupMetaData
source · pub struct RowGroupMetaData { /* private fields */ }
Expand description
Metadata for a row group.
Implementations
sourceimpl RowGroupMetaData
impl RowGroupMetaData
sourcepub fn builder(schema_descr: SchemaDescPtr) -> RowGroupMetaDataBuilder
pub fn builder(schema_descr: SchemaDescPtr) -> RowGroupMetaDataBuilder
Returns builer for row group metadata.
sourcepub fn num_columns(&self) -> usize
pub fn num_columns(&self) -> usize
Number of columns in this row group.
sourcepub fn column(&self, i: usize) -> &ColumnChunkMetaData
pub fn column(&self, i: usize) -> &ColumnChunkMetaData
Returns column chunk metadata for i
th column.
sourcepub fn columns(&self) -> &[ColumnChunkMetaData]
pub fn columns(&self) -> &[ColumnChunkMetaData]
Returns slice of column chunk metadata.
sourcepub fn total_byte_size(&self) -> i64
pub fn total_byte_size(&self) -> i64
Total byte size of all uncompressed column data in this row group.
sourcepub fn compressed_size(&self) -> i64
pub fn compressed_size(&self) -> i64
Total size of all compressed column data in this row group.
sourcepub fn page_offset_index(&self) -> &Option<Vec<Vec<PageLocation>>>
pub fn page_offset_index(&self) -> &Option<Vec<Vec<PageLocation>>>
Returns reference of page offset index of all column in this row group.
sourcepub fn schema_descr(&self) -> &SchemaDescriptor
pub fn schema_descr(&self) -> &SchemaDescriptor
Returns reference to a schema descriptor.
sourcepub fn schema_descr_ptr(&self) -> SchemaDescPtr
pub fn schema_descr_ptr(&self) -> SchemaDescPtr
Returns reference counted clone of schema descriptor.
sourcepub fn set_page_offset(&mut self, page_offset: Vec<Vec<PageLocation>>)
pub fn set_page_offset(&mut self, page_offset: Vec<Vec<PageLocation>>)
Sets page offset index for this row group.
sourcepub fn from_thrift(
schema_descr: SchemaDescPtr,
rg: RowGroup
) -> Result<RowGroupMetaData>
pub fn from_thrift(
schema_descr: SchemaDescPtr,
rg: RowGroup
) -> Result<RowGroupMetaData>
Method to convert from Thrift.
Trait Implementations
sourceimpl Clone for RowGroupMetaData
impl Clone for RowGroupMetaData
sourcefn clone(&self) -> RowGroupMetaData
fn clone(&self) -> RowGroupMetaData
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresourceimpl Debug for RowGroupMetaData
impl Debug for RowGroupMetaData
sourceimpl PartialEq<RowGroupMetaData> for RowGroupMetaData
impl PartialEq<RowGroupMetaData> for RowGroupMetaData
sourcefn eq(&self, other: &RowGroupMetaData) -> bool
fn eq(&self, other: &RowGroupMetaData) -> bool
impl StructuralPartialEq for RowGroupMetaData
Auto Trait Implementations
impl RefUnwindSafe for RowGroupMetaData
impl Send for RowGroupMetaData
impl Sync for RowGroupMetaData
impl Unpin for RowGroupMetaData
impl UnwindSafe for RowGroupMetaData
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more