Node

abstract def buildQuery(q: Query): Query

Given a query, it builds another query with more data.

abstract def hasProjection: Boolean

Returns whether the tree contains any projection nodes.

abstract def transformSingleDown(fn: (Node) ⇒ Option[Node]): Option[Node]

Transforms the tree from the outermost node to the innermost until a single node is transformed, then stops.

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

def fitSchema(fields: Seq[AttributeReference]): Node

Makes the tree fit a certain schema by changing the projected columns or adding a new Project node if there is no projection.

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

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

def toString(): String

final def wait(): Unit

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

final def wait(arg0: Long): Unit