Add support for allow_partial_search_results search request parameter (elastic#821)

Author: dmvass

elasticsearch/client/__init__.py

@@ -547,14 +547,15 @@ def update(self, index, doc_type, id, body=None, params=None):
  doc_type, id, '_update'), params=params, body=body)
 
  @query_params('_source', '_source_exclude', '_source_include',
- 'allow_no_indices', 'analyze_wildcard', 'analyzer',
- 'batched_reduce_size', 'default_operator', 'df', 'docvalue_fields',
- 'expand_wildcards', 'explain', 'from_', 'ignore_unavailable', 'lenient',
- 'max_concurrent_shard_requests', 'pre_filter_shard_size', 'preference',
- 'q', 'request_cache', 'routing', 'scroll', 'search_type', 'size',
- 'sort', 'stats', 'stored_fields', 'suggest_field', 'suggest_mode',
- 'suggest_size', 'suggest_text', 'terminate_after', 'timeout',
- 'track_scores', 'track_total_hits', 'typed_keys', 'version')
+ 'allow_no_indices', 'allow_partial_search_results', 'analyze_wildcard',
+ 'analyzer', 'batched_reduce_size', 'default_operator', 'df',
+ 'docvalue_fields', 'expand_wildcards', 'explain', 'from_',
+ 'ignore_unavailable', 'lenient', 'max_concurrent_shard_requests',
+ 'pre_filter_shard_size', 'preference', 'q', 'request_cache', 'routing',
+ 'scroll', 'search_type', 'size', 'sort', 'stats', 'stored_fields',
+ 'suggest_field', 'suggest_mode', 'suggest_size', 'suggest_text',
+ 'terminate_after', 'timeout', 'track_scores', 'track_total_hits',
+ 'typed_keys', 'version')
  def search(self, index=None, doc_type=None, body=None, params=None):
  """
  Execute a search query and get back search hits that match the query.
@@ -574,6 +575,10 @@ def search(self, index=None, doc_type=None, body=None, params=None):
  :arg allow_no_indices: Whether to ignore if a wildcard indices
  expression resolves into no concrete indices. (This includes `_all`
  string or when no indices have been specified)
+ :arg allow_partial_search_results: Set to false to return an overall
+ failure if the request would produce partial results. Defaults to
+ True, which will allow partial results in the case of timeouts or
+ partial failures
  :arg analyze_wildcard: Specify whether wildcard and prefix queries
  should be analyzed (default: false)
  :arg analyzer: The analyzer to use for the query string