[−][src]Struct parquet::file::metadata::RowGroupMetaData
Metadata for a row group.
Methods
impl RowGroupMetaData[src]
impl RowGroupMetaDatapub fn builder(schema_descr: SchemaDescPtr) -> RowGroupMetaDataBuilder[src]
pub fn builder(schema_descr: SchemaDescPtr) -> RowGroupMetaDataBuilderReturns builer for row group metadata.
pub 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.
pub fn to_thrift(&self) -> RowGroup[src]
pub fn to_thrift(&self) -> RowGroupMethod to convert to Thrift.
Auto Trait Implementations
impl !Send for RowGroupMetaData
impl !Send for RowGroupMetaDataimpl !Sync for RowGroupMetaData
impl !Sync for RowGroupMetaDataBlanket Implementations
impl<T> From for T[src]
impl<T> From for Timpl<T, U> Into for T where
U: From<T>, [src]
impl<T, U> Into for T where
U: From<T>, impl<T, U> TryFrom for T where
T: From<U>, [src]
impl<T, U> TryFrom for T where
T: From<U>, type Error = !
try_from)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>try_from)Performs the conversion.
impl<T> Borrow for T where
T: ?Sized, [src]
impl<T> Borrow for T where
T: ?Sized, impl<T> Any for T where
T: 'static + ?Sized, [src]
impl<T> Any for T where
T: 'static + ?Sized, fn get_type_id(&self) -> TypeId[src]
fn get_type_id(&self) -> TypeId🔬 This is a nightly-only experimental API. (get_type_id)
this method will likely be replaced by an associated static
Gets the TypeId of self. Read more
impl<T> BorrowMut for T where
T: ?Sized, [src]
impl<T> BorrowMut for T where
T: ?Sized, fn borrow_mut(&mut self) -> &mut T[src]
fn borrow_mut(&mut self) -> &mut TMutably borrows from an owned value. Read more
impl<T, U> TryInto for T where
U: TryFrom<T>, [src]
impl<T, U> TryInto for T where
U: TryFrom<T>, type Error = <U as TryFrom<T>>::Error
try_from)The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>try_from)Performs the conversion.
impl<T, U> TryInto for T where
U: TryFrom<T>,
impl<T, U> TryInto for T where
U: TryFrom<T>, impl<E> SpecializationError for E[src]
impl<E> SpecializationError for Efn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where
T: ?Sized, [src]
fn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where
T: ?Sized, 🔬 This is a nightly-only experimental API. (rustc_private)
this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?
Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S is the encoder/decoder state type, T is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more
impl<T> Erased for T[src]
impl<T> Erased for Timpl<T> Send for T where
T: ?Sized, [src]
impl<T> Send for T where
T: ?Sized, impl<T> Sync for T where
T: ?Sized, [src]
impl<T> Sync for T where
T: ?Sized, impl<T> Erased for T
impl<T> Erased for T