Packages

class RankFixer extends BatchedRunningWindowFixer with Logging

Rank is more complicated than DenseRank to fix. This is because there are gaps in the rank values. The rank value of each group is row number of the first row in the group. So values in the same partition group but not the same ordering are fixed by adding the row number from the previous batch to them. If they are a part of the same ordering and part of the same partition, then we need to just put in the previous rank value.

Because we need both a rank and a row number to fix things up the input to this is a struct containing a rank column as the first entry and a row number column as the second entry. This happens in the scanCombine method for GpuRank. It is a little ugly but it works to maintain the requirement that the input to the fixer is a single column.

Linear Supertypes
Logging, BatchedRunningWindowFixer, Retryable, AutoCloseable, AnyRef, Any
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. RankFixer
  2. Logging
  3. BatchedRunningWindowFixer
  4. Retryable
  5. AutoCloseable
  6. AnyRef
  7. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. All

Instance Constructors

  1. new RankFixer()

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def checkpoint(): Unit
    Definition Classes
    RankFixer → Retryable
  6. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  7. def close(): Unit
    Definition Classes
    RankFixer → AutoCloseable
  8. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  9. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  10. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  11. def fixUp(samePartitionMask: Either[ColumnVector, Boolean], sameOrderMask: Option[Either[ColumnVector, Boolean]], windowedColumnOutput: ColumnView): ColumnVector

    Fix up windowedColumnOutput with any stored state from previous batches.

    Fix up windowedColumnOutput with any stored state from previous batches. Like all window operations the input data will have been sorted by the partition by columns and the order by columns.

    samePartitionMask

    a mask that uses true to indicate the row is for the same partition by keys that was the last row in the previous batch or false to indicate it is not. If this is known to be all true or all false values a single boolean is used. If it can change for different rows than a column vector is provided. Only values that are for the same partition by keys should be modified. Because the input data is sorted by the partition by columns the boolean values will be grouped together.

    sameOrderMask

    a mask just like samePartitionMask but for ordering. This happens for some operations like rank and dense_rank that use the ordering columns in a row based query. This is not needed for all fixers and is not free to calculate, so you must set needsOrderMask to true if you are going to use it.

    windowedColumnOutput

    the output of the windowAggregation without anything fixed/modified. This should not be closed by fixUp as it will be handled by the framework.

    returns

    a fixed ColumnVector that was with outputs updated for items that were in the same group by key as the last row in the previous batch.

    Definition Classes
    RankFixer → BatchedRunningWindowFixer
  12. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  13. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  14. def incRef(col: ColumnView): ColumnVector
    Attributes
    protected
    Definition Classes
    BatchedRunningWindowFixer
  15. def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean
    Attributes
    protected
    Definition Classes
    Logging
  16. def initializeLogIfNecessary(isInterpreter: Boolean): Unit
    Attributes
    protected
    Definition Classes
    Logging
  17. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  18. def isTraceEnabled(): Boolean
    Attributes
    protected
    Definition Classes
    Logging
  19. def log: Logger
    Attributes
    protected
    Definition Classes
    Logging
  20. def logDebug(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  21. def logDebug(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  22. def logError(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  23. def logError(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  24. def logInfo(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  25. def logInfo(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  26. def logName: String
    Attributes
    protected
    Definition Classes
    Logging
  27. def logTrace(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  28. def logTrace(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  29. def logWarning(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  30. def logWarning(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  31. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  32. def needsOrderMask: Boolean
    Definition Classes
    RankFixer → BatchedRunningWindowFixer
  33. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  34. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  35. def restore(): Unit
    Definition Classes
    RankFixer → Retryable
  36. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  37. def toString(): String
    Definition Classes
    AnyRef → Any
  38. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  39. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  40. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()

Inherited from Logging

Inherited from BatchedRunningWindowFixer

Inherited from Retryable

Inherited from AutoCloseable

Inherited from AnyRef

Inherited from Any

Ungrouped