This does seem to be a bug. I have opened #7050
<https://github.com/elasticsearch/elasticsearch/issues/7050> for this
On Sunday, 27 July 2014 16:10:05 UTC+1, Valentin wrote:
>
> Hi,
>
> this looks like an error to me? I tried to order a terms aggregation by
> the value count sub aggregation an Elasticsearch 1.3.0 throws the following
> error: "ReduceSearchPhaseException[Failed to execute phase [query],
> [reduce] ]; nested: ElasticsearchIllegalArgumentException[Invalid order
> path [grades_count]. Missing value key in [grades_count] which refers to a
> multi-value metric aggregation]; "
>
> My Aggregation looks like this (this is only a dumbed down version to
> demonstrate the error.)
>
> "aggs": {
> "students": {
> "terms": {
> "field": "name",
> "order": {
> "grades_count": "desc"
> }
> },
> "aggs": {
> "grades_count": {
> "value_count": {
> "field": "grades"
> }
> }
> }
> }
> }
>
> Regards,
> Valentin
>
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