Packages

  • package root
    Definition Classes
    root
  • package org
    Definition Classes
    root
  • package apache
    Definition Classes
    org
  • package spark
    Definition Classes
    apache
  • package sql
    Definition Classes
    spark
  • package catalyst

    Catalyst is a library for manipulating relational query plans.

    Catalyst is a library for manipulating relational query plans. All classes in catalyst are considered an internal API to Spark SQL and are subject to change between minor releases.

    Definition Classes
    sql
  • package dsl

    A collection of implicit conversions that create a DSL for constructing catalyst data structures.

    A collection of implicit conversions that create a DSL for constructing catalyst data structures.

    scala> import org.apache.spark.sql.catalyst.dsl.expressions._

// Standard operators are added to expressions.
scala> import org.apache.spark.sql.catalyst.expressions.Literal
scala> Literal(1) + Literal(1)
res0: org.apache.spark.sql.catalyst.expressions.Add = (1 + 1)

// There is a conversion from 'symbols to unresolved attributes.
scala> 'a.attr
res1: org.apache.spark.sql.catalyst.analysis.UnresolvedAttribute = 'a

// These unresolved attributes can be used to create more complicated expressions.
scala> 'a === 'b
res2: org.apache.spark.sql.catalyst.expressions.EqualTo = ('a = 'b)

// SQL verbs can be used to construct logical query plans.
scala> import org.apache.spark.sql.catalyst.plans.logical._
scala> import org.apache.spark.sql.catalyst.dsl.plans._
scala> LocalRelation('key.int, 'value.string).where('key === 1).select('value).analyze
res3: org.apache.spark.sql.catalyst.plans.logical.LogicalPlan =
Project [value#3]
 Filter (key#2 = 1)
  LocalRelation [key#2,value#3], []
    Definition Classes
    catalyst
  • trait ExpressionConversions extends AnyRef
    Definition Classes
    dsl
  • DslAttribute
  • DslExpression
  • DslString
  • DslSymbol
  • ImplicitAttribute
  • StringToAttributeConversionHelper

implicit class DslSymbol extends ImplicitAttribute

Linear Supertypes
ImplicitAttribute, ImplicitOperators, AnyRef, Any
Ordering
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  2. By Inheritance
Inherited
  1. DslSymbol
  2. ImplicitAttribute
  3. ImplicitOperators
  4. AnyRef
  5. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new DslSymbol(sym: Symbol)

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. def %(other: Expression): Expression
    Definition Classes
    ImplicitOperators
  4. def &(other: Expression): Expression
    Definition Classes
    ImplicitOperators
  5. def &&(other: Expression): Predicate
    Definition Classes
    ImplicitOperators
  6. def *(other: Expression): Expression
    Definition Classes
    ImplicitOperators
  7. def +(other: Expression): Expression
    Definition Classes
    ImplicitOperators
  8. def -(other: Expression): Expression
    Definition Classes
    ImplicitOperators
  9. def /(other: Expression): Expression
    Definition Classes
    ImplicitOperators
  10. def <(other: Expression): Predicate
    Definition Classes
    ImplicitOperators
  11. def <=(other: Expression): Predicate
    Definition Classes
    ImplicitOperators
  12. def <=>(other: Expression): Predicate
    Definition Classes
    ImplicitOperators
  13. def =!=(other: Expression): Predicate
    Definition Classes
    ImplicitOperators
  14. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  15. def ===(other: Expression): Predicate
    Definition Classes
    ImplicitOperators
  16. def >(other: Expression): Predicate
    Definition Classes
    ImplicitOperators
  17. def >=(other: Expression): Predicate
    Definition Classes
    ImplicitOperators
  18. def ^(other: Expression): Expression
    Definition Classes
    ImplicitOperators
  19. def array(arrayType: ArrayType): AttributeReference
    Definition Classes
    ImplicitAttribute
  20. def array(dataType: DataType): AttributeReference

    Creates a new AttributeReference of type array

    Creates a new AttributeReference of type array

    Definition Classes
    ImplicitAttribute
  21. def as(alias: Symbol): NamedExpression
    Definition Classes
    ImplicitOperators
  22. def as(alias: String): NamedExpression
    Definition Classes
    ImplicitOperators
  23. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  24. def asc: SortOrder
    Definition Classes
    ImplicitOperators
  25. def asc_nullsLast: SortOrder
    Definition Classes
    ImplicitOperators
  26. def attr: UnresolvedAttribute
    Definition Classes
    ImplicitAttribute
  27. def binary: AttributeReference

    Creates a new AttributeReference of type binary

    Creates a new AttributeReference of type binary

    Definition Classes
    ImplicitAttribute
  28. def boolean: AttributeReference

    Creates a new AttributeReference of type boolean

    Creates a new AttributeReference of type boolean

    Definition Classes
    ImplicitAttribute
  29. def byte: AttributeReference

    Creates a new AttributeReference of type byte

    Creates a new AttributeReference of type byte

    Definition Classes
    ImplicitAttribute
  30. def cast(to: DataType): Expression
    Definition Classes
    ImplicitOperators
  31. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  32. def contains(other: Expression): Expression
    Definition Classes
    ImplicitOperators
  33. def date: AttributeReference

    Creates a new AttributeReference of type date

    Creates a new AttributeReference of type date

    Definition Classes
    ImplicitAttribute
  34. def decimal(precision: Int, scale: Int): AttributeReference

    Creates a new AttributeReference of type decimal

    Creates a new AttributeReference of type decimal

    Definition Classes
    ImplicitAttribute
  35. def decimal: AttributeReference

    Creates a new AttributeReference of type decimal

    Creates a new AttributeReference of type decimal

    Definition Classes
    ImplicitAttribute
  36. def desc: SortOrder
    Definition Classes
    ImplicitOperators
  37. def desc_nullsFirst: SortOrder
    Definition Classes
    ImplicitOperators
  38. def distinctFunction(exprs: Expression*): UnresolvedFunction
    Definition Classes
    ImplicitAttribute
  39. def div(other: Expression): Expression
    Definition Classes
    ImplicitOperators
  40. def double: AttributeReference

    Creates a new AttributeReference of type double

    Creates a new AttributeReference of type double

    Definition Classes
    ImplicitAttribute
  41. def endsWith(other: Expression): Expression
    Definition Classes
    ImplicitOperators
  42. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  43. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  44. def expr: UnresolvedAttribute
    Definition Classes
    ImplicitAttribute → ImplicitOperators
  45. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  46. def float: AttributeReference

    Creates a new AttributeReference of type float

    Creates a new AttributeReference of type float

    Definition Classes
    ImplicitAttribute
  47. def function(exprs: Expression*): UnresolvedFunction

    Create a function.

    Create a function.

    Definition Classes
    ImplicitAttribute
  48. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  49. def getField(fieldName: String): UnresolvedExtractValue
    Definition Classes
    ImplicitOperators
  50. def getItem(ordinal: Expression): UnresolvedExtractValue
    Definition Classes
    ImplicitOperators
  51. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  52. def in(list: Expression*): Expression
    Definition Classes
    ImplicitOperators
  53. def int: AttributeReference

    Creates a new AttributeReference of type int

    Creates a new AttributeReference of type int

    Definition Classes
    ImplicitAttribute
  54. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  55. def isNotNull: Predicate
    Definition Classes
    ImplicitOperators
  56. def isNull: Predicate
    Definition Classes
    ImplicitOperators
  57. def like(other: Expression, escapeChar: Char = '\\'): Expression
    Definition Classes
    ImplicitOperators
  58. def long: AttributeReference

    Creates a new AttributeReference of type long

    Creates a new AttributeReference of type long

    Definition Classes
    ImplicitAttribute
  59. def map(mapType: MapType): AttributeReference
    Definition Classes
    ImplicitAttribute
  60. def map(keyType: DataType, valueType: DataType): AttributeReference

    Creates a new AttributeReference of type map

    Creates a new AttributeReference of type map

    Definition Classes
    ImplicitAttribute
  61. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  62. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  63. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  64. def obj(cls: Class[_]): AttributeReference

    Creates a new AttributeReference of object type

    Creates a new AttributeReference of object type

    Definition Classes
    ImplicitAttribute
  65. def rlike(other: Expression): Expression
    Definition Classes
    ImplicitOperators
  66. def s: String
    Definition Classes
    DslSymbol → ImplicitAttribute
  67. def short: AttributeReference

    Creates a new AttributeReference of type short

    Creates a new AttributeReference of type short

    Definition Classes
    ImplicitAttribute
  68. def startsWith(other: Expression): Expression
    Definition Classes
    ImplicitOperators
  69. def string: AttributeReference

    Creates a new AttributeReference of type string

    Creates a new AttributeReference of type string

    Definition Classes
    ImplicitAttribute
  70. def struct(attrs: AttributeReference*): AttributeReference
    Definition Classes
    ImplicitAttribute
  71. def struct(structType: StructType): AttributeReference

    Creates a new AttributeReference of type struct

    Creates a new AttributeReference of type struct

    Definition Classes
    ImplicitAttribute
  72. def substr(pos: Expression, len: Expression = Literal(Int.MaxValue)): Expression
    Definition Classes
    ImplicitOperators
  73. def substring(pos: Expression, len: Expression = Literal(Int.MaxValue)): Expression
    Definition Classes
    ImplicitOperators
  74. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  75. def timestamp: AttributeReference

    Creates a new AttributeReference of type timestamp

    Creates a new AttributeReference of type timestamp

    Definition Classes
    ImplicitAttribute
  76. def toString(): String
    Definition Classes
    AnyRef → Any
  77. def unary_!: Predicate
    Definition Classes
    ImplicitOperators
  78. def unary_+: Expression
    Definition Classes
    ImplicitOperators
  79. def unary_-: Expression
    Definition Classes
    ImplicitOperators
  80. def unary_~: Expression
    Definition Classes
    ImplicitOperators
  81. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  82. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  83. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  84. def |(other: Expression): Expression
    Definition Classes
    ImplicitOperators
  85. def ||(other: Expression): Predicate
    Definition Classes
    ImplicitOperators

Inherited from ImplicitAttribute

Inherited from ImplicitOperators

Inherited from AnyRef

Inherited from Any

Ungrouped