Package org.apache.calcite.rel

Class RelNodes

  • public class RelNodes
extends java.lang.Object
    Utilities concerning relational expressions.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static java.util.Comparator<RelNode> COMPARATOR
      Comparator that provides an arbitrary but stable ordering to RelNodes.
      static com.google.common.collect.Ordering<RelNode> ORDERING
      Ordering for RelNodes.

    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      private RelNodes()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static int compareRels​(RelNode[] rels0, RelNode[] rels1)
      Compares arrays of RelNode.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • COMPARATOR

        public static final java.util.Comparator<RelNode> COMPARATOR
        Comparator that provides an arbitrary but stable ordering to RelNodes.

      • ORDERING

        public static final com.google.common.collect.Ordering<RelNode> ORDERING
        Ordering for RelNodes.

    • Constructor Detail

      • RelNodes

        private RelNodes()

    • Method Detail

      • compareRels

        public static int compareRels​(RelNode[] rels0,
                              RelNode[] rels1)
        Compares arrays of RelNode.