How to define histogram / date_histogram as parent of a moving average aggregation

Question

Using elastic search and java. Not using a json or other external resource for the query.

Answer 1

Something like this should do:

SumAggregationBuilder sum = AggregationBuilders.sum("my_sum")
    .field("amount_field");

MovAvgPipelineAggregationBuilder mavg = PipelineAggregatorBuilders.movingAvg("my_mov_avg", "my_sum");

DateHistogramBuilder histo = AggregationBuilders.dateHistogram("histo")
     .field("date_field")
     .subAggregation(sum)
     .subAggregation(mavg);