Method Project

core/src/main/java/org/apache/calcite/rel/core/Project.java:92–107

Creates a Project. @param cluster Cluster that this relational expression belongs to @param traits Traits of this relational expression @param hints Hints of this relation expression @param input Input relational expression @param projects List of expressions for the input columns @param r

(
      RelOptCluster cluster,
      RelTraitSet traits,
      List<RelHint> hints,
      RelNode input,
      List<? extends RexNode> projects,
      RelDataType rowType,
      Set<CorrelationId> variableSet)

   *                    to be used by nested expressions
   */
  @SuppressWarnings("method.invocation.invalid")
  protected Project(
      RelOptCluster cluster,
      RelTraitSet traits,
      List<RelHint> hints,
      RelNode input,
      List<? extends RexNode> projects,
      RelDataType rowType,
      Set<CorrelationId> variableSet) {
    super(cluster, traits, input);
    this.exps = ImmutableList.copyOf(projects);
    this.hints = ImmutableList.copyOf(hints);
    this.rowType = requireNonNull(rowType, "rowType");
    this.variablesSet = ImmutableSet.copyOf(variableSet);
    assert isValid(Litmus.THROW, null);
  }

  @Deprecated // to be removed before 2.0
  protected Project(