case classExprId(id: Long) extends Product with Serializable
A globally (within this JVM) id for a given named expression.
Used to identify with attribute output by a relation is being
referenced in a subsequent computation.
Linear Supertypes
Serializable, Serializable, Product, scala.Equals, AnyRef, Any
A globally (within this JVM) id for a given named expression. Used to identify with attribute output by a relation is being referenced in a subsequent computation.