[−][src]Struct parquet::file::metadata::ColumnChunkMetaData
Metadata for a column chunk.
Methods
impl ColumnChunkMetaData[src]
impl ColumnChunkMetaDataRepresents common operations for a column chunk.
pub fn builder(column_descr: ColumnDescPtr) -> ColumnChunkMetaDataBuilder[src]
pub fn builder(column_descr: ColumnDescPtr) -> ColumnChunkMetaDataBuilderReturns builder for column chunk metadata.
pub fn file_path(&self) -> Option<&String>[src]
pub fn file_path(&self) -> Option<&String>File where the column chunk is stored.
If not set, assumed to belong to the same file as the metadata. This path is relative to the current file.
pub fn file_offset(&self) -> i64[src]
pub fn file_offset(&self) -> i64Byte offset in file_path().
pub fn column_type(&self) -> Type[src]
pub fn column_type(&self) -> TypeType of this column. Must be primitive.
pub fn column_path(&self) -> &ColumnPath[src]
pub fn column_path(&self) -> &ColumnPathPath (or identifier) of this column.
pub fn column_descr(&self) -> &ColumnDescriptor[src]
pub fn column_descr(&self) -> &ColumnDescriptorDescriptor for this column.
pub fn column_descr_ptr(&self) -> ColumnDescPtr[src]
pub fn column_descr_ptr(&self) -> ColumnDescPtrReference counted clone of descriptor for this column.
pub fn encodings(&self) -> &Vec<Encoding>[src]
pub fn encodings(&self) -> &Vec<Encoding>All encodings used for this column.
pub fn num_values(&self) -> i64[src]
pub fn num_values(&self) -> i64Total number of values in this column chunk.
pub fn compression(&self) -> Compression[src]
pub fn compression(&self) -> CompressionCompression for this column.
pub fn compressed_size(&self) -> i64[src]
pub fn compressed_size(&self) -> i64Returns the total compressed data size of this column chunk.
pub fn uncompressed_size(&self) -> i64[src]
pub fn uncompressed_size(&self) -> i64Returns the total uncompressed data size of this column chunk.
pub fn data_page_offset(&self) -> i64[src]
pub fn data_page_offset(&self) -> i64Returns the offset for the column data.
pub fn has_index_page(&self) -> bool[src]
pub fn has_index_page(&self) -> boolReturns true if this column chunk contains a index page, false otherwise.
pub fn index_page_offset(&self) -> Option<i64>[src]
pub fn index_page_offset(&self) -> Option<i64>Returns the offset for the index page.
pub fn has_dictionary_page(&self) -> bool[src]
pub fn has_dictionary_page(&self) -> boolReturns true if this column chunk contains a dictionary page, false otherwise.
pub fn dictionary_page_offset(&self) -> Option<i64>[src]
pub fn dictionary_page_offset(&self) -> Option<i64>Returns the offset for the dictionary page, if any.
pub fn statistics(&self) -> Option<&Statistics>[src]
pub fn statistics(&self) -> Option<&Statistics>Returns statistics that are set for this column chunk,
or None if no statistics are available.
pub fn from_thrift(column_descr: ColumnDescPtr, cc: ColumnChunk) -> Result<Self>[src]
pub fn from_thrift(column_descr: ColumnDescPtr, cc: ColumnChunk) -> Result<Self>Method to convert from Thrift.
pub fn to_thrift(&self) -> ColumnChunk[src]
pub fn to_thrift(&self) -> ColumnChunkMethod to convert to Thrift.
Auto Trait Implementations
impl !Send for ColumnChunkMetaData
impl !Send for ColumnChunkMetaDataimpl !Sync for ColumnChunkMetaData
impl !Sync for ColumnChunkMetaDataBlanket 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