Module parquet::arrow::arrow_reader

Contains reader which reads parquet data into arrow RecordBatch

Structs

• ArrowPredicateFn
  An ArrowPredicate created from an FnMut
• ArrowReaderBuilder
  A generic builder for constructing sync or async arrow parquet readers. This is not intended to be used directly, instead you should use the specialization for the type of reader you wish to use
• ArrowReaderMetadata
  The cheaply clone-able metadata necessary to construct a ArrowReaderBuilder
• ArrowReaderOptions
  Options that control how metadata is read for a parquet file
• ParquetRecordBatchReader
  An Iterator<Item = ArrowResult<RecordBatch>> that yields RecordBatch read from a parquet data source
• RowFilter
  A RowFilter allows pushing down a filter predicate to skip IO and decode
• RowSelection
  RowSelection allows selecting or skipping a provided number of rows when scanning the parquet file.
• RowSelector
  RowSelection is a collection of RowSelector used to skip rows when scanning a parquet file

Traits

• ArrowPredicate
  A predicate operating on RecordBatch
• RowGroups
  A collection of row groups

Type Aliases

• ParquetRecordBatchReaderBuilder
  A synchronous builder used to construct ParquetRecordBatchReader for a file