Packages

case class GpuRand(child: Expression) extends UnaryExpression with ShimUnaryExpression with GpuExpression with ExpectsInputTypes with ExpressionWithRandomSeed with Retryable with Product with Serializable

Generate a random column with i.i.d. uniformly distributed values in [0, 1).

Linear Supertypes
Serializable, Serializable, Retryable, ExpressionWithRandomSeed, ExpectsInputTypes, GpuExpression, ShimUnaryExpression, UnaryExpression, Expression, TreeNode[Expression], Product, Equals, AnyRef, Any
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. GpuRand
  2. Serializable
  3. Serializable
  4. Retryable
  5. ExpressionWithRandomSeed
  6. ExpectsInputTypes
  7. GpuExpression
  8. ShimUnaryExpression
  9. UnaryExpression
  10. Expression
  11. TreeNode
  12. Product
  13. Equals
  14. AnyRef
  15. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. All

Instance Constructors

  1. new GpuRand()
  2. new GpuRand(child: Expression)

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. def apply(number: Int): TreeNode[_]
    Definition Classes
    TreeNode
  5. def argString(maxFields: Int): String
    Definition Classes
    TreeNode
  6. def asCode: String
    Definition Classes
    TreeNode
  7. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  8. lazy val canonicalized: Expression
    Definition Classes
    GpuExpression → Expression
  9. def checkInputDataTypes(): TypeCheckResult
    Definition Classes
    ExpectsInputTypes → Expression
  10. def checkpoint(): Unit

    Save the state, so it can be restored in the case of a retry.

    Save the state, so it can be restored in the case of a retry. (This is called inside a Spark task context on executors.)

    Definition Classes
    GpuRand → Retryable
  11. val child: Expression
    Definition Classes
    GpuRand → UnaryExpression
  12. final def children: Seq[Expression]
    Definition Classes
    UnaryExpression → TreeNode
  13. def childrenResolved: Boolean
    Definition Classes
    Expression
  14. def clone(): Expression
    Definition Classes
    TreeNode → AnyRef
  15. def collect[B](pf: PartialFunction[Expression, B]): Seq[B]
    Definition Classes
    TreeNode
  16. def collectFirst[B](pf: PartialFunction[Expression, B]): Option[B]
    Definition Classes
    TreeNode
  17. def collectLeaves(): Seq[Expression]
    Definition Classes
    TreeNode
  18. def columnarEval(batch: ColumnarBatch): GpuColumnVector

    Returns the result of evaluating this expression on the entire ColumnarBatch.

    Returns the result of evaluating this expression on the entire ColumnarBatch. The result of calling this is a GpuColumnVector.

    By convention any GpuColumnVector returned by columnarEval is owned by the caller and will need to be closed by them. This can happen by putting it into a ColumnarBatch and closing the batch or by closing the vector directly if it is a temporary value.

    Definition Classes
    GpuRand → GpuExpression
  19. def columnarEvalAny(batch: ColumnarBatch): Any

    Returns the result of evaluating this expression on the entire ColumnarBatch.

    Returns the result of evaluating this expression on the entire ColumnarBatch. The result of calling this may be a single GpuColumnVector or a scalar value. Scalar values typically happen if they are a part of the expression i.e. col("a") + 100. In this case the 100 is a literal that Add would have to be able to handle.

    By convention any AutoCloseable returned by columnarEvalAny is owned by the caller and will need to be closed by them.

    Definition Classes
    GpuExpression
  20. lazy val containsChild: Set[TreeNode[_]]
    Definition Classes
    TreeNode
  21. def convertToAst(numFirstTableColumns: Int): AstExpression

    Build an equivalent representation of this expression in a cudf AST.

    Build an equivalent representation of this expression in a cudf AST.

    numFirstTableColumns

    number of columns in the leftmost input table. Spark places the columns of all inputs in a single sequence, while cudf AST uses an explicit table reference to make column indices unique. This parameter helps translate input column references from Spark's single sequence into cudf's separate sequences.

    returns

    top node of the equivalent AST

    Definition Classes
    GpuExpression
  22. def copyTagsFrom(other: Expression): Unit
    Definition Classes
    TreeNode
  23. var curXORShiftRandomSeed: Option[Long]
    Attributes
    protected
  24. def dataType: DataType
    Definition Classes
    GpuRand → Expression
  25. def defineCodeGen(ctx: CodegenContext, ev: ExprCode, f: (String) ⇒ String): ExprCode
    Attributes
    protected
    Definition Classes
    UnaryExpression
  26. lazy val deterministic: Boolean
    Definition Classes
    GpuRand → Expression
  27. def disableCoalesceUntilInput(): Boolean

    Override this if your expression cannot allow combining of data from multiple files into a single batch before it operates on them.

    Override this if your expression cannot allow combining of data from multiple files into a single batch before it operates on them. These are for things like getting the input file name. Which for spark is stored in a thread local variable which means we have to jump through some hoops to make this work.

    Definition Classes
    GpuExpression
  28. def disableTieredProjectCombine: Boolean

    If this returns true then tiered project will stop looking to combine expressions when this is seen.

    If this returns true then tiered project will stop looking to combine expressions when this is seen.

    Definition Classes
    GpuExpression
  29. final def doGenCode(ctx: CodegenContext, ev: ExprCode): ExprCode
    Definition Classes
    GpuExpression → Expression
  30. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  31. final def eval(input: InternalRow = null): Any
    Definition Classes
    GpuExpression → Expression
  32. def fastEquals(other: TreeNode[_]): Boolean
    Definition Classes
    TreeNode
  33. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  34. def find(f: (Expression) ⇒ Boolean): Option[Expression]
    Definition Classes
    TreeNode
  35. def flatArguments: Iterator[Any]
    Attributes
    protected
    Definition Classes
    Expression
  36. def flatMap[A](f: (Expression) ⇒ TraversableOnce[A]): Seq[A]
    Definition Classes
    TreeNode
  37. def foldable: Boolean
    Definition Classes
    UnaryExpression → Expression
  38. def foreach(f: (Expression) ⇒ Unit): Unit
    Definition Classes
    TreeNode
  39. def foreachUp(f: (Expression) ⇒ Unit): Unit
    Definition Classes
    TreeNode
  40. def genCode(ctx: CodegenContext): ExprCode
    Definition Classes
    Expression
  41. def generateTreeString(depth: Int, lastChildren: Seq[Boolean], append: (String) ⇒ Unit, verbose: Boolean, prefix: String, addSuffix: Boolean, maxFields: Int, printNodeId: Boolean, indent: Int): Unit
    Definition Classes
    TreeNode
  42. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  43. def getTagValue[T](tag: TreeNodeTag[T]): Option[T]
    Definition Classes
    TreeNode
  44. def hasSideEffects: Boolean

    Could evaluating this expression cause side-effects, such as throwing an exception?

    Could evaluating this expression cause side-effects, such as throwing an exception?

    Definition Classes
    GpuExpression
  45. def hashCode(): Int
    Definition Classes
    TreeNode → AnyRef → Any
  46. def innerChildren: Seq[TreeNode[_]]
    Definition Classes
    TreeNode
  47. def inputTypes: Seq[AbstractDataType]
    Definition Classes
    GpuRand → ExpectsInputTypes
  48. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  49. def jsonFields: List[JField]
    Attributes
    protected
    Definition Classes
    TreeNode
  50. def makeCopy(newArgs: Array[AnyRef]): Expression
    Definition Classes
    TreeNode
  51. def map[A](f: (Expression) ⇒ A): Seq[A]
    Definition Classes
    TreeNode
  52. def mapChildren(f: (Expression) ⇒ Expression): Expression
    Definition Classes
    TreeNode
  53. def mapProductIterator[B](f: (Any) ⇒ B)(implicit arg0: ClassTag[B]): Array[B]
    Attributes
    protected
    Definition Classes
    TreeNode
  54. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  55. def nodeName: String
    Definition Classes
    TreeNode
  56. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  57. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  58. def nullSafeCodeGen(ctx: CodegenContext, ev: ExprCode, f: (String) ⇒ String): ExprCode
    Attributes
    protected
    Definition Classes
    UnaryExpression
  59. def nullSafeEval(input: Any): Any
    Attributes
    protected
    Definition Classes
    UnaryExpression
  60. def nullable: Boolean
    Definition Classes
    GpuRand → UnaryExpression → Expression
  61. def numberedTreeString: String
    Definition Classes
    TreeNode
  62. val origin: Origin
    Definition Classes
    TreeNode
  63. def otherCopyArgs: Seq[AnyRef]
    Attributes
    protected
    Definition Classes
    TreeNode
  64. def p(number: Int): Expression
    Definition Classes
    TreeNode
  65. def prettyJson: String
    Definition Classes
    TreeNode
  66. def prettyName: String
    Definition Classes
    Expression
  67. var previousPartition: Int
    Attributes
    protected
  68. def references: AttributeSet
    Definition Classes
    Expression
  69. lazy val resolved: Boolean
    Definition Classes
    Expression
  70. def restore(): Unit

    Restore the state that was saved by calling to "checkpoint".

    Restore the state that was saved by calling to "checkpoint". (This is called inside a Spark task context on executors.)

    Definition Classes
    GpuRand → Retryable
  71. lazy val retryable: Boolean

    true means this expression can be used inside a retry block, otherwise false.

    true means this expression can be used inside a retry block, otherwise false. An expression is retryable when

    • it is deterministic, or
    • when being non-deterministic, it is a Retryable and its children are all retryable.
    Definition Classes
    GpuExpression
  72. var rng: RapidsXORShiftRandom

    Record ID within each partition.

    Record ID within each partition. By being transient, the Random Number Generator is reset every time we serialize and deserialize and initialize it.

    Attributes
    protected
  73. lazy val seed: Long
    Attributes
    protected
    Annotations
    @transient()
  74. def seedExpression: Expression
  75. val selfNonDeterministic: Boolean

    Whether an expression itself is non-deterministic when its "deterministic" is false, no matter whether it has any non-deterministic children.

    Whether an expression itself is non-deterministic when its "deterministic" is false, no matter whether it has any non-deterministic children. An expression is actually a tree, and deterministic being false means there is at least one tree node is non-deterministic, but we need to know the exact nodes which are non-deterministic to check if it implements the Retryable.

    Default to false because Spark checks only children by default in Expression. So it is non-deterministic iff it has non-deterministic children.

    NOTE When overriding "deterministic", this should be taken care of.

    Definition Classes
    GpuRand → GpuExpression
  76. def semanticEquals(other: Expression): Boolean
    Definition Classes
    Expression
  77. def semanticHash(): Int
    Definition Classes
    Expression
  78. def setTagValue[T](tag: TreeNodeTag[T], value: T): Unit
    Definition Classes
    TreeNode
  79. def simpleString(maxFields: Int): String
    Definition Classes
    Expression → TreeNode
  80. def simpleStringWithNodeId(): String
    Definition Classes
    Expression → TreeNode
  81. def sql: String
    Definition Classes
    Expression
  82. def stringArgs: Iterator[Any]
    Attributes
    protected
    Definition Classes
    TreeNode
  83. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  84. def toJSON: String
    Definition Classes
    TreeNode
  85. def toString(): String
    Definition Classes
    Expression → TreeNode → AnyRef → Any
  86. def transform(rule: PartialFunction[Expression, Expression]): Expression
    Definition Classes
    TreeNode
  87. def transformDown(rule: PartialFunction[Expression, Expression]): Expression
    Definition Classes
    TreeNode
  88. def transformUp(rule: PartialFunction[Expression, Expression]): Expression
    Definition Classes
    TreeNode
  89. def treeString(append: (String) ⇒ Unit, verbose: Boolean, addSuffix: Boolean, maxFields: Int, printOperatorId: Boolean): Unit
    Definition Classes
    TreeNode
  90. final def treeString(verbose: Boolean, addSuffix: Boolean, maxFields: Int, printOperatorId: Boolean): String
    Definition Classes
    TreeNode
  91. final def treeString: String
    Definition Classes
    TreeNode
  92. def unsetTagValue[T](tag: TreeNodeTag[T]): Unit
    Definition Classes
    TreeNode
  93. final def verboseString(maxFields: Int): String
    Definition Classes
    Expression → TreeNode
  94. def verboseStringWithSuffix(maxFields: Int): String
    Definition Classes
    TreeNode
  95. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  96. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  97. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  98. def withNewChildren(newChildren: Seq[Expression]): Expression
    Definition Classes
    TreeNode
  99. def withNewSeed(seed: Long): GpuRand
    Definition Classes
    GpuRand → ExpressionWithRandomSeed

Inherited from Serializable

Inherited from Serializable

Inherited from Retryable

Inherited from ExpressionWithRandomSeed

Inherited from ExpectsInputTypes

Inherited from GpuExpression

Inherited from ShimUnaryExpression

Inherited from UnaryExpression

Inherited from Expression

Inherited from TreeNode[Expression]

Inherited from Product

Inherited from Equals

Inherited from AnyRef

Inherited from Any

Ungrouped