Examples with DoublesSketchToStringPostAggregator org.apache.druid.query.aggregation.datasketches.quantiles.DoublesSketchToStringPostAggregator used on opensource projects

Example 1 with DoublesSketchToStringPostAggregator

use of org.apache.druid.query.aggregation.datasketches.quantiles.DoublesSketchToStringPostAggregator 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);
}