pub struct Format { /* private fields */ }
Expand description
The format specification for the CSV file
Implementations§
source§impl Format
impl Format
pub fn with_header(self, has_header: bool) -> Format
pub fn with_delimiter(self, delimiter: u8) -> Format
pub fn with_escape(self, escape: u8) -> Format
pub fn with_quote(self, quote: u8) -> Format
pub fn with_terminator(self, terminator: u8) -> Format
sourcepub fn with_null_regex(self, null_regex: Regex) -> Format
pub fn with_null_regex(self, null_regex: Regex) -> Format
Provide a regex to match null values, defaults to ^$
sourcepub fn infer_schema<R>(
&self,
reader: R,
max_records: Option<usize>
) -> Result<(Schema, usize), ArrowError>where
R: Read,
pub fn infer_schema<R>(
&self,
reader: R,
max_records: Option<usize>
) -> Result<(Schema, usize), ArrowError>where
R: Read,
Infer schema of CSV records from the provided reader
If max_records
is None
, all records will be read, otherwise up to max_records
records are read to infer the schema
Returns inferred schema and number of records read
Trait Implementations§
Auto Trait Implementations§
impl Freeze for Format
impl RefUnwindSafe for Format
impl Send for Format
impl Sync for Format
impl Unpin for Format
impl UnwindSafe for Format
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moreCreates a shared type from an unshared type.