Struct 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) -> Self
pub fn set_backward_compatible_lz4(self, value: bool) -> Self
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) -> Self
pub fn set_read_bloom_filter(self, value: bool) -> Self
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.