Module async_reader

Source
Expand description

async API for reading Parquet files as RecordBatches

See the crate-level documentation for more details.

See example on ParquetRecordBatchStreamBuilder::new

Structs§

MetadataLoader
An asynchronous interface to load ParquetMetaData from an async source
ParquetRecordBatchStream
An asynchronous Streamof RecordBatch constructed using ParquetRecordBatchStreamBuilder to read parquet files.

Traits§

AsyncFileReader
The asynchronous interface used by ParquetRecordBatchStream to read parquet files
MetadataFetch
A data source that can be used with MetadataLoader to load ParquetMetaData
MetadataSuffixFetch
A data source that can be used with MetadataLoader to load ParquetMetaData via suffix requests, without knowing the file size

Functions§

fetch_parquet_metadataDeprecated
Fetches parquet metadata

Type Aliases§

ParquetRecordBatchStreamBuilder
A builder for reading parquet files from an async source as ParquetRecordBatchStream