slick.compiler

ResolveZipJoins

Related Doc: package compiler

class ResolveZipJoins extends Phase

Rewrite zip joins into a form suitable for SQL using inner joins and RowNumber columns.

We rely on having a Bind around every Join and both of its generators, which should have been generated by Phase.forceOuterBinds. The inner Binds need to select Pure(StructNode(...)) which should be the outcome of Phase.flattenProjections.

Source
ResolveZipJoins.scala
Linear Supertypes
Phase, Logging, (CompilerState) ⇒ CompilerState, AnyRef, Any
Known Subclasses
MySQLResolveZipJoins
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Inherited
  1. ResolveZipJoins
  2. Phase
  3. Logging
  4. Function1
  5. AnyRef
  6. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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  1. Public
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Instance Constructors

  1. new ResolveZipJoins(rownumStyle: Boolean = false)

    rownumStyle

    Whether to use Subquery boundaries suitable for Oracle-style ROWNUM semantics instead of standard ROW_NUMBER().

Type Members

  1. type State = Boolean

    The immutable state of the phase that can also be accessed by other phases.

    The immutable state of the phase that can also be accessed by other phases.

    Definition Classes
    ResolveZipJoins → Phase

Value Members

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

    Definition Classes
    AnyRef → Any

  2. final def ##(): Int

    Definition Classes
    AnyRef → Any

  3. def +(other: String): String

    Implicit information
    This member is added by an implicit conversion from ResolveZipJoins to any2stringadd[ResolveZipJoins] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd

  4. def ->[B](y: B): (ResolveZipJoins, B)

    Implicit information
    This member is added by an implicit conversion from ResolveZipJoins to ArrowAssoc[ResolveZipJoins] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()

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

    Definition Classes
    AnyRef → Any

  6. def andThen[A](g: (CompilerState) ⇒ A): (CompilerState) ⇒ A

    Definition Classes
    Function1
    Annotations
    @unspecialized()

  7. def apply(state: CompilerState): CompilerState

    Run the phase

    Run the phase

    Definition Classes
    ResolveZipJoins → Phase → Function1

  8. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  9. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  10. def compose[A](g: (A) ⇒ CompilerState): (A) ⇒ CompilerState

    Definition Classes
    Function1
    Annotations
    @unspecialized()

  11. val condAbove: Condition

  12. val condBelow: Condition

  13. def ensuring(cond: (ResolveZipJoins) ⇒ Boolean, msg: ⇒ Any): ResolveZipJoins

    Implicit information
    This member is added by an implicit conversion from ResolveZipJoins to Ensuring[ResolveZipJoins] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  14. def ensuring(cond: (ResolveZipJoins) ⇒ Boolean): ResolveZipJoins

    Implicit information
    This member is added by an implicit conversion from ResolveZipJoins to Ensuring[ResolveZipJoins] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  15. def ensuring(cond: Boolean, msg: ⇒ Any): ResolveZipJoins

    Implicit information
    This member is added by an implicit conversion from ResolveZipJoins to Ensuring[ResolveZipJoins] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  16. def ensuring(cond: Boolean): ResolveZipJoins

    Implicit information
    This member is added by an implicit conversion from ResolveZipJoins to Ensuring[ResolveZipJoins] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

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

    Definition Classes
    AnyRef

  18. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  19. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  20. def formatted(fmtstr: String): String

    Implicit information
    This member is added by an implicit conversion from ResolveZipJoins to StringFormat[ResolveZipJoins] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()

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

    Definition Classes
    AnyRef → Any

  22. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  23. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  24. lazy val logger: SlickLogger

    Attributes
    protected[this]
    Definition Classes
    Logging

  25. val name: String

    The unique name of the phase

    The unique name of the phase

    Definition Classes
    ResolveZipJoins → Phase

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

    Definition Classes
    AnyRef

  27. final def notify(): Unit

    Definition Classes
    AnyRef

  28. final def notifyAll(): Unit

    Definition Classes
    AnyRef

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

    Definition Classes
    AnyRef

  30. def toString(): String

    Definition Classes
    Function1 → AnyRef → Any

  31. def transformZip(s1: TermSymbol, jlsym: TermSymbol, jrsym: TermSymbol, l: Bind, ldefs: ConstArray[(TermSymbol, Node)], r: Bind, rdefs: ConstArray[(TermSymbol, Node)], sel: Node): Node

    Transform a zip operation of the form Bind(s1, Join(jlsym, jrsym, l @ Bind(_, _, Pure(StructNode(ldefs), _)), r @ Bind(_, _, Pure(StructNode(rdefs), _)), JoinType.Zip, LiteralNode(true)), sel) into an equivalent mapping operation using RowNum by first transforming both sides of the join into zipWithIndex and then using transformZipWithIndex on those.

  32. def transformZipWithIndex(s1: TermSymbol, ls: TermSymbol, from: Node, defs: ConstArray[(TermSymbol, Node)], offset: Long, p: Node): Node

    Transform a zipWithIndex operation of the form Bind(s1, Join(_, _, Bind(ls, from, Pure(StructNode(defs), _)), RangeFrom(offset), JoinType.Zip, LiteralNode(true)), p) into an equivalent mapping operation using RowNum.

    Transform a zipWithIndex operation of the form Bind(s1, Join(_, _, Bind(ls, from, Pure(StructNode(defs), _)), RangeFrom(offset), JoinType.Zip, LiteralNode(true)), p) into an equivalent mapping operation using RowNum. This method can be overridden in subclasses to implement non-standard translations.

  33. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  36. def →[B](y: B): (ResolveZipJoins, B)

    Implicit information
    This member is added by an implicit conversion from ResolveZipJoins to ArrowAssoc[ResolveZipJoins] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Inherited from Phase

Inherited from Logging

Inherited from (CompilerState) ⇒ CompilerState

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from ResolveZipJoins to any2stringadd[ResolveZipJoins]

Inherited by implicit conversion StringFormat from ResolveZipJoins to StringFormat[ResolveZipJoins]

Inherited by implicit conversion Ensuring from ResolveZipJoins to Ensuring[ResolveZipJoins]

Inherited by implicit conversion ArrowAssoc from ResolveZipJoins to ArrowAssoc[ResolveZipJoins]

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