Facet stats for number fields

Building a price slider used to take a second request to find the cheapest and most expensive product. Ask for a number field as a facet and the response now includes facetStats with its range.

{
  "facetStats": {
    "price": { "min": 19, "max": 349 }
  }
}

The range follows the query and the filters, so the slider always matches the results on screen. See Faceted search for a full example.

Added

• facetStats in search responses for number fields listed in facets.

Improved

• Facet counts on indexes with more than a million documents are up to three times faster.