Object

io.eels.component.parquet

ParquetReaderFn

Related Doc: package parquet

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object ParquetReaderFn extends Logging

Helper function to create a parquet reader, using the apache parquet library. The reader supports optional predicate (for row level filtering) and a projection schema (for column level filtering).

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  1. final def !=(arg0: Any): Boolean

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  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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  4. def apply(path: Path, predicate: Option[Predicate], projectionSchema: Option[Schema]): ParquetReader[GenericRecord]

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    Creates a new reader for the given path.

    Creates a new reader for the given path.

    predicate

    if set then a parquet predicate is applied to the rows

    projectionSchema

    if set then the schema is used to narrow the fields returned

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  7. val config: Config

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  14. val logger: Logger

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  18. val parallelism: String

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