Examples with Prel org.apache.drill.exec.planner.physical.Prel used on opensource projects

Example 26 with Prel

use of org.apache.drill.exec.planner.physical.Prel in project drill by apache.

the class FinalColumnReorderer method visitPrel.

@Override
public Prel visitPrel(Prel prel, Void value) throws RuntimeException {
    if (prel instanceof UnionPrel) {
        return addColumnOrderingBelowUnion(prel);
    }
    List<RelNode> children = Lists.newArrayList();
    boolean changed = false;
    for (Prel p : prel) {
        Prel newP = p.accept(this, null);
        if (newP != p) {
            changed = true;
        }
        children.add(newP);
    }
    if (changed) {
        return (Prel) prel.copy(prel.getTraitSet(), children);
    } else {
        return prel;
    }
}

Example 27 with Prel

use of org.apache.drill.exec.planner.physical.Prel in project drill by apache.

the class PrelVisualizerVisitor method visitChildren.

private void visitChildren(Prel prel, VisualizationState value) throws Exception {
    value.indent();
    value.out.append("children = [\n");
    value.push();
    for (Prel child : prel) {
        child.accept(this, value);
    }
    value.pop();
    value.indent();
    value.out.append("]\n");
}