Hi
Is it possible to order the buckets of a first level aggregation by the number of buckets of a second level aggregations. For example I would like to do something like:
{
"aggs" : {
"aggr_level_1" : {
"terms" : {
"field" : "field_1",
"order" : { "aggr_level_2._count" : "desc" }
},
"aggs" : {
"aggr_level_2" : { "terms" : { "field" : "field_2" } }
}
}
}
}
Unfortunately when this request is executed, ES returns the following error:
Invalid terms aggregation order path [srcIp.doc_count]. Terms buckets can only be sorted on a sub-aggregator path that is built out of zero or more single-bucket aggregations within the path and a final single-bucket or a metrics aggregation at the path end.
Is it a limitation? If yes, is there a workaround? For Info I'm using ES 2.0 beta2 for my test.
Thanks
Laurent