com.twitter.scalding.parquet

HasColumnProjection

trait HasColumnProjection extends AnyRef

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DailySuffixParquetThrift, FixedPathParquetThrift, HourlySuffixParquetThrift, ParquetThrift, ParquetThriftBase
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  1. final def !=(arg0: AnyRef): Boolean

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

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  3. final def ##(): Int

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  4. final def ==(arg0: AnyRef): Boolean

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

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  6. final def asInstanceOf[T0]: T0

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  7. def clone(): AnyRef

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    @throws( ... )

  8. final def columnGlobs: Set[ColumnProjectionGlob]

    Attributes
    protected[com.twitter.scalding.parquet]

  9. final def eq(arg0: AnyRef): Boolean

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  10. def equals(arg0: Any): Boolean

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  11. def finalize(): Unit

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  12. final def getClass(): Class[_]

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  13. final def globsInParquetStringFormat: Option[String]

    Parquet accepts globs separated by the ; character

    Parquet accepts globs separated by the ; character

    Attributes
    protected[com.twitter.scalding.parquet]

  14. def hashCode(): Int

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  15. final def isInstanceOf[T0]: Boolean

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  16. final def ne(arg0: AnyRef): Boolean

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  17. final def notify(): Unit

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  18. final def notifyAll(): Unit

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  19. final def synchronized[T0](arg0: ⇒ T0): T0

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  20. def toString(): String

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  21. final def wait(): Unit

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  22. final def wait(arg0: Long, arg1: Int): Unit

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  23. final def wait(arg0: Long): Unit

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  24. def withColumns: Set[String]

    The format for specifying columns is described here: https://github.

    The format for specifying columns is described here: https://github.com/apache/incubator-parquet-mr/blob/master/parquet_cascading.md#21-projection-pushdown-with-thriftscrooge-records

    Note that the format described there says that multiple globs can be combined with a ; character. Instead, we use a Set() here and will eventually join the set on the ; character for you.

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