Examples with PostAggregator org.apache.druid.query.aggregation.PostAggregator used on opensource projects

Example 66 with PostAggregator

use of org.apache.druid.query.aggregation.PostAggregator in project druid by druid-io.

the class HllSketchToStringOperatorConversion method toPostAggregator.

@Nullable
@Override
public PostAggregator toPostAggregator(PlannerContext plannerContext, RowSignature rowSignature, RexNode rexNode, PostAggregatorVisitor postAggregatorVisitor) {
    final List<RexNode> operands = ((RexCall) rexNode).getOperands();
    final PostAggregator firstOperand = OperatorConversions.toPostAggregator(plannerContext, rowSignature, operands.get(0), postAggregatorVisitor);
    if (firstOperand == null) {
        return null;
    }
    return new HllSketchToStringPostAggregator(postAggregatorVisitor.getOutputNamePrefix() + postAggregatorVisitor.getAndIncrementCounter(), firstOperand);
}

Example 67 with PostAggregator

use of org.apache.druid.query.aggregation.PostAggregator in project druid by druid-io.

the class ThetaSketchEstimateWithErrorBoundsOperatorConversion method toPostAggregator.

@Nullable
@Override
public PostAggregator toPostAggregator(PlannerContext plannerContext, RowSignature rowSignature, RexNode rexNode, PostAggregatorVisitor postAggregatorVisitor) {
    final List<RexNode> operands = ((RexCall) rexNode).getOperands();
    final PostAggregator firstOperand = OperatorConversions.toPostAggregator(plannerContext, rowSignature, operands.get(0), postAggregatorVisitor);
    if (firstOperand == null) {
        return null;
    }
    if (!operands.get(1).isA(SqlKind.LITERAL)) {
        return null;
    }
    final int errorBoundsStdDev = ((Number) RexLiteral.value(operands.get(1))).intValue();
    return new SketchEstimatePostAggregator(postAggregatorVisitor.getOutputNamePrefix() + postAggregatorVisitor.getAndIncrementCounter(), firstOperand, errorBoundsStdDev);
}

Example 68 with PostAggregator

use of org.apache.druid.query.aggregation.PostAggregator in project druid by druid-io.

the class DoublesSketchSummaryOperatorConversion method toPostAggregator.

@Nullable
@Override
public PostAggregator toPostAggregator(PlannerContext plannerContext, RowSignature rowSignature, RexNode rexNode, PostAggregatorVisitor postAggregatorVisitor) {
    final List<RexNode> operands = ((RexCall) rexNode).getOperands();
    final PostAggregator firstOperand = OperatorConversions.toPostAggregator(plannerContext, rowSignature, operands.get(0), postAggregatorVisitor);
    if (firstOperand == null) {
        return null;
    }
    return new DoublesSketchToStringPostAggregator(postAggregatorVisitor.getOutputNamePrefix() + postAggregatorVisitor.getAndIncrementCounter(), firstOperand);
}

Example 69 with PostAggregator

use of org.apache.druid.query.aggregation.PostAggregator in project druid by druid-io.

the class ThetaSketchEstimateOperatorConversion method toPostAggregator.

@Nullable
@Override
public PostAggregator toPostAggregator(PlannerContext plannerContext, RowSignature rowSignature, RexNode rexNode, PostAggregatorVisitor postAggregatorVisitor) {
    final List<RexNode> operands = ((RexCall) rexNode).getOperands();
    final PostAggregator firstOperand = OperatorConversions.toPostAggregator(plannerContext, rowSignature, operands.get(0), postAggregatorVisitor);
    if (firstOperand == null) {
        return null;
    }
    return new SketchEstimatePostAggregator(postAggregatorVisitor.getOutputNamePrefix() + postAggregatorVisitor.getAndIncrementCounter(), firstOperand, null);
}

Example 70 with PostAggregator

use of org.apache.druid.query.aggregation.PostAggregator in project druid by druid-io.

the class TDigestSketchToQuantilesPostAggregatorTest method testComparator.

@Test
public void testComparator() {
    expectedException.expect(IAE.class);
    expectedException.expectMessage("Comparing arrays of quantiles is not supported");
    PostAggregator postAgg = new TDigestSketchToQuantilesPostAggregator("post", new ConstantPostAggregator("", 100), new double[] { 0.25, 0.75 });
    postAgg.getComparator();
}