Examples with RelOptMaterialization org.apache.calcite.plan.RelOptMaterialization used on opensource projects

Example 11 with RelOptMaterialization

use of org.apache.calcite.plan.RelOptMaterialization in project calcite by apache.

the class Programs method standard.

/**
 * Returns the standard program with user metadata provider.
 */
public static Program standard(RelMetadataProvider metadataProvider) {
    final Program program1 = new Program() {

        public RelNode run(RelOptPlanner planner, RelNode rel, RelTraitSet requiredOutputTraits, List<RelOptMaterialization> materializations, List<RelOptLattice> lattices) {
            planner.setRoot(rel);
            for (RelOptMaterialization materialization : materializations) {
                planner.addMaterialization(materialization);
            }
            for (RelOptLattice lattice : lattices) {
                planner.addLattice(lattice);
            }
            final RelNode rootRel2 = rel.getTraitSet().equals(requiredOutputTraits) ? rel : planner.changeTraits(rel, requiredOutputTraits);
            assert rootRel2 != null;
            planner.setRoot(rootRel2);
            final RelOptPlanner planner2 = planner.chooseDelegate();
            final RelNode rootRel3 = planner2.findBestExp();
            assert rootRel3 != null : "could not implement exp";
            return rootRel3;
        }
    };
    return sequence(subQuery(metadataProvider), new DecorrelateProgram(), new TrimFieldsProgram(), program1, // EnumerableCalcRel is introduced.
    calc(metadataProvider));
}