Examples with DrillJoinRelBase org.apache.drill.exec.planner.common.DrillJoinRelBase used on opensource projects

Example 1 with DrillJoinRelBase

use of org.apache.drill.exec.planner.common.DrillJoinRelBase in project drill by apache.

the class JoinPruleBase method createDistBothPlan.

// Create join plan with both left and right children hash distributed. If the physical join type
// is MergeJoin, a collation must be provided for both left and right child and the plan will contain
// sort converter if necessary to provide the collation.
private void createDistBothPlan(RelOptRuleCall call, DrillJoinRel join, PhysicalJoinType physicalJoinType, RelNode left, RelNode right, RelCollation collationLeft, RelCollation collationRight, DrillDistributionTrait hashLeftPartition, DrillDistributionTrait hashRightPartition) throws InvalidRelException {
    //DrillDistributionTrait hashLeftPartition = new DrillDistributionTrait(DrillDistributionTrait.DistributionType.HASH_DISTRIBUTED, ImmutableList.copyOf(getDistributionField(join.getLeftKeys())));
    //DrillDistributionTrait hashRightPartition = new DrillDistributionTrait(DrillDistributionTrait.DistributionType.HASH_DISTRIBUTED, ImmutableList.copyOf(getDistributionField(join.getRightKeys())));
    RelTraitSet traitsLeft = null;
    RelTraitSet traitsRight = null;
    if (physicalJoinType == PhysicalJoinType.MERGE_JOIN) {
        assert collationLeft != null && collationRight != null;
        traitsLeft = left.getTraitSet().plus(Prel.DRILL_PHYSICAL).plus(collationLeft).plus(hashLeftPartition);
        traitsRight = right.getTraitSet().plus(Prel.DRILL_PHYSICAL).plus(collationRight).plus(hashRightPartition);
    } else if (physicalJoinType == PhysicalJoinType.HASH_JOIN) {
        traitsLeft = left.getTraitSet().plus(Prel.DRILL_PHYSICAL).plus(hashLeftPartition);
        traitsRight = right.getTraitSet().plus(Prel.DRILL_PHYSICAL).plus(hashRightPartition);
    }
    final RelNode convertedLeft = convert(left, traitsLeft);
    final RelNode convertedRight = convert(right, traitsRight);
    DrillJoinRelBase newJoin = null;
    if (physicalJoinType == PhysicalJoinType.HASH_JOIN) {
        newJoin = new HashJoinPrel(join.getCluster(), traitsLeft, convertedLeft, convertedRight, join.getCondition(), join.getJoinType());
    } else if (physicalJoinType == PhysicalJoinType.MERGE_JOIN) {
        newJoin = new MergeJoinPrel(join.getCluster(), traitsLeft, convertedLeft, convertedRight, join.getCondition(), join.getJoinType());
    }
    call.transformTo(newJoin);
}