diff --git a/docs/Aggregation/Missing.md b/docs/Aggregation/Missing.md new file mode 100644 index 0000000000000000000000000000000000000000..1f3cdd302ef601c272588f075a092d9eb6c8b2e1 --- /dev/null +++ b/docs/Aggregation/Missing.md @@ -0,0 +1,31 @@ +# Missing Aggregation + +> More info about missing aggregation is in the [official elasticsearch docs][1] + +A field data based single bucket aggregation, that creates a bucket of all documents +in the current document set context that are missing a field value. + +## Simple example + +```JSON +{ + "aggregations" : { + "agg_products_without_a_price" : { + "missing" : { "field" : "price" } + } + } + } +``` + +And now the query via DSL: + +```php +$missingAggregation = new MissingAggregation('products_without_a_price', 'price'); + +$search = new Search(); +$search->addAggregation($missingAggregation); + +$queryArray = $search->toArray(); +``` + +[1]: https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-bucket-missing-aggregation.html