Support for size and order in all bucket aggregations

[colings86]

At the moment not all of the bucket aggregations support returning buckets in a particular order or limiting the number of returned buckets. Because of this the aggregations that support size and order have their own implementations for this. It would be nice to have a common implementation which can be used by all bucket aggregations. This would also ensure the implementations are consistent in functionality

[uboness]

+1

[jpountz]

+1

[s1monw]

moving out to 1.4 for now

[djnelson9715]

+1 as well for this feature. Is this going to be in an upcoming release?

[Vineeth-Mohan]

+1

[jaric]

+1

[clintongormley]

@colings86 still of interest?

[colings86]

@clintongormley No, with the addition of Pipeline Aggregations I think it would be better to have a 'sort and truncate' pipeline aggregation to cover this functionality in a generic way across all aggregations rather than having to implement it for each one individually. I have created an issue (#14928) for this so I'll close this in favour of it

[jpountz]

+1

[McStork]

This feature seems pretty cool. If it was implemented outside of the Pipeline Aggregations, it would perform faster though, right?