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 DslExpression extends ImplicitOperators

Linear Supertypes
ImplicitOperators, AnyRef, Any
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. DslExpression
  2. ImplicitOperators
  3. AnyRef
  4. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new DslExpression(e: Expression)

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 as(alias: Symbol): NamedExpression
    Definition Classes
    ImplicitOperators
  20. def as(alias: String): NamedExpression
    Definition Classes
    ImplicitOperators
  21. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  22. def asc: SortOrder
    Definition Classes
    ImplicitOperators
  23. def asc_nullsLast: SortOrder
    Definition Classes
    ImplicitOperators
  24. def cast(to: DataType): Expression
    Definition Classes
    ImplicitOperators
  25. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  26. def contains(other: Expression): Expression
    Definition Classes
    ImplicitOperators
  27. def desc: SortOrder
    Definition Classes
    ImplicitOperators
  28. def desc_nullsFirst: SortOrder
    Definition Classes
    ImplicitOperators
  29. def div(other: Expression): Expression
    Definition Classes
    ImplicitOperators
  30. def endsWith(other: Expression): Expression
    Definition Classes
    ImplicitOperators
  31. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  32. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  33. def expr: Expression
    Definition Classes
    DslExpression → ImplicitOperators
  34. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  35. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  36. def getField(fieldName: String): UnresolvedExtractValue
    Definition Classes
    ImplicitOperators
  37. def getItem(ordinal: Expression): UnresolvedExtractValue
    Definition Classes
    ImplicitOperators
  38. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  39. def in(list: Expression*): Expression
    Definition Classes
    ImplicitOperators
  40. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  41. def isNotNull: Predicate
    Definition Classes
    ImplicitOperators
  42. def isNull: Predicate
    Definition Classes
    ImplicitOperators
  43. def like(other: Expression, escapeChar: Char = '\\'): Expression
    Definition Classes
    ImplicitOperators
  44. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  45. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  46. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  47. def rlike(other: Expression): Expression
    Definition Classes
    ImplicitOperators
  48. def startsWith(other: Expression): Expression
    Definition Classes
    ImplicitOperators
  49. def substr(pos: Expression, len: Expression = Literal(Int.MaxValue)): Expression
    Definition Classes
    ImplicitOperators
  50. def substring(pos: Expression, len: Expression = Literal(Int.MaxValue)): Expression
    Definition Classes
    ImplicitOperators
  51. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  52. def toString(): String
    Definition Classes
    AnyRef → Any
  53. def unary_!: Predicate
    Definition Classes
    ImplicitOperators
  54. def unary_+: Expression
    Definition Classes
    ImplicitOperators
  55. def unary_-: Expression
    Definition Classes
    ImplicitOperators
  56. def unary_~: Expression
    Definition Classes
    ImplicitOperators
  57. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  58. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  59. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  60. def |(other: Expression): Expression
    Definition Classes
    ImplicitOperators
  61. def ||(other: Expression): Predicate
    Definition Classes
    ImplicitOperators

Inherited from ImplicitOperators

Inherited from AnyRef

Inherited from Any

Ungrouped