One more test

Author: astefan

x-pack/plugin/esql/qa/testFixtures/src/main/resources/inlinestats.csv-spec

@@ -2,6 +2,19 @@
 // TODO: re-enable the commented tests once the Join functionality stabilizes
 //
 
+allFieldsReturned
+required_capability: inlinestats_v7
+
+FROM hosts METADATA _index
+| INLINESTATS c = COUNT(*) BY host_group
+| SORT c
+| LIMIT 1
+;
+
+  card:keyword | description:text  | host:keyword  |                                     ip0:ip                                      |        ip1:ip           |_index:keyword |     c:long    |  host_group:text
+eth0           |epsilon gw instance|epsilon        |[fe80::cae2:65ff:fece:feb9, fe80::cae2:65ff:fece:fec0, fe80::cae2:65ff:fece:fec1]|fe80::cae2:65ff:fece:fec1|hosts          |1              |null
+;
+
 maxOfInt
 required_capability: inlinestats_v7
 // tag::max-languages[]