Struct DefaultParquetFileReaderFactory 

pub struct DefaultParquetFileReaderFactory {
    store: Arc<dyn ObjectStore>,
}

Default implementation of ParquetFileReaderFactory

This implementation:

1. Reads parquet directly from an underlying [ObjectStore] instance.
2. Reads the footer and page metadata on demand.
3. Does not cache metadata or coalesce I/O operations.

Fields

store: Arc<dyn ObjectStore>

Implementations

impl DefaultParquetFileReaderFactory

pub fn new(store: Arc<dyn ObjectStore>) -> DefaultParquetFileReaderFactory

Create a new DefaultParquetFileReaderFactory.

Trait Implementations

impl Debug for DefaultParquetFileReaderFactory

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl ParquetFileReaderFactory for DefaultParquetFileReaderFactory

fn create_reader( &self, partition_index: usize, partitioned_file: PartitionedFile, metadata_size_hint: Option<usize>, metrics: &ExecutionPlanMetricsSet, ) -> Result<Box<dyn AsyncFileReader + Send>, DataFusionError>

Provides an AsyncFileReader for reading data from a parquet file specified