Here's a bit of background info:
I'm interested in using aggregations to produce distinct keys for multiple
"term" fields and then getting a "measure" value for those keys. This can
be accomplished by "tree"-ing term aggregations together and whatever
"measure" terms are applied to the lowest sub-aggregation.
For instance:
"aggs":{
"field1Agg": {
"terms": {
"field": "field1"
},
"aggs": {
"field2Agg": {
"terms": {
"field": "field2"
},
"aggs": {
"measure1Agg": { "sum": { "field" : "measure1"} }
}
}
}
}
}
Now, when I get this data back, I just recursively flatten the results into
a single List. I then apply whatever sorting and limiting after the fact.
The bad:
This actually requires me to request for every record from ElasticSearch,
which is not ideal.
So is there a particular way to accomplish the sorting/limiting on
ElasticSearch rather than after I flatten the data? I saw the "top_hits"
aggregation, but I'm not sure how it applies...
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