anchor.diff:  --------------------------------------------------
   // TEST[skip: a sample output of a status of a completed async search]
   
  -<1> Indicates that the async search was completed with an error
  +<1> Indicates that the async search was completed with an error.
  +
   
   [[delete-async-search]]
   ==== Delete async search
   
  -You can use the delete async search API to manually delete an async search
  -by ID. If the search is still running, the search request will be cancelled.
  +You can use the delete async search API to manually delete an async search by 
  +ID. If the search is still running, the search request will be cancelled. 
   Otherwise, the saved search results are deleted.
   
   [source,console,id=delete-async-search-date-histogram-example]
  
positive.code: 
  <1> Indicates how many shards have executed the query so far.
  
  For an async search that has been completed, the status response has
  an additional `completion_status` field that shows the status
  code of the completed async search.
  [source,console-result]
  --------------------------------------------------
  {
  
negative.code: `true` to request that results are stored for later retrieval also when the
  search completes within the `wait_for_completion_timeout`.
  
  You can also specify how long the async search needs to be available through the 
  `keep_alive` parameter, which defaults to `5d` (five days). Ongoing async 
  searches and any saved search results are deleted after this period.
  
  NOTE: When the primary sort of the results is an indexed field, shards get 
  sorted based on minimum and maximum value that they hold for that field, hence 
  partial results become available following the sort criteria that was requested.
  
  The submit async search API supports the same 
  <<search-search-api-query-params,parameters>> as the search API, though some 
  have different default values:
  
  * `batched_reduce_size` defaults to `5`: this affects how often partial results
  become available, which happens whenever shard results are reduced. A partial
  