Package org.apache.calcite.tools

Interface Program

All Known Implementing Classes:

Programs.DecorrelateProgram, Programs.RuleSetProgram, Programs.SequenceProgram, Programs.TrimFieldsProgram

public interface Program

Program that transforms a relational expression into another relational expression.

A planner is a sequence of programs, each of which is sometimes called a "phase". The most typical program is an invocation of the volcano planner with a particular RuleSet.

Method Summary

Modifier and Type	Method	Description
RelNode	run(RelOptPlanner planner, RelNode rel, RelTraitSet requiredOutputTraits, java.util.List<RelOptMaterialization> materializations, java.util.List<RelOptLattice> lattices)

Method Detail

run

RelNode run(RelOptPlanner planner,
            RelNode rel,
            RelTraitSet requiredOutputTraits,
            java.util.List<RelOptMaterialization> materializations,
            java.util.List<RelOptLattice> lattices)