Struct deltalake::datafusion::parquet::file::properties::ReaderPropertiesBuilder
source · pub struct ReaderPropertiesBuilder { /* private fields */ }
Expand description
Builder for parquet file reader configuration. See example on
ReaderProperties
Implementations§
source§impl ReaderPropertiesBuilder
impl ReaderPropertiesBuilder
Reader properties builder.
sourcepub fn build(self) -> ReaderProperties
pub fn build(self) -> ReaderProperties
Finalizes the configuration and returns immutable reader properties struct.
sourcepub fn set_backward_compatible_lz4(self, value: bool) -> ReaderPropertiesBuilder
pub fn set_backward_compatible_lz4(self, value: bool) -> ReaderPropertiesBuilder
Enable/disable backward compatible LZ4.
If backward compatible LZ4 is enable, on LZ4_HADOOP error it will fallback to the older versions LZ4 algorithms. That is LZ4_FRAME, for backward compatibility with files generated by older versions of this library, and LZ4_RAW, for backward compatibility with files generated by older versions of parquet-cpp.
If backward compatible LZ4 is disabled, on LZ4_HADOOP error it will return the error.
sourcepub fn set_read_bloom_filter(self, value: bool) -> ReaderPropertiesBuilder
pub fn set_read_bloom_filter(self, value: bool) -> ReaderPropertiesBuilder
Enable/disable reading bloom filter
If reading bloom filter is enabled, bloom filter will be read from the file. If reading bloom filter is disabled, bloom filter will not be read from the file.
By default bloom filter is set to be read.
Auto Trait Implementations§
impl Freeze for ReaderPropertiesBuilder
impl RefUnwindSafe for ReaderPropertiesBuilder
impl Send for ReaderPropertiesBuilder
impl Sync for ReaderPropertiesBuilder
impl Unpin for ReaderPropertiesBuilder
impl UnwindSafe for ReaderPropertiesBuilder
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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
source§impl<T> Instrument for T
impl<T> Instrument for T
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fn instrument(self, span: Span) -> Instrumented<Self>
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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>
self
into a Left
variant of Either<Self, Self>
if into_left
is true
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Converts self
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
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