Dimitris Athanasiou 34f116eae3 Require explicit query in _delete_by_query API (#23632)
As the query of a search request defaults to match_all,
calling _delete_by_query without an explicit query may
result in deleting all data.

In order to protect users against falling into that
pitfall, this commit adds a check to require the explicit
setting of a query.

Closes #23629
2017-03-28 15:44:57 +01:00
..
2017-03-11 18:28:31 -08:00