diff options
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb b/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb index e6b8e3ae90..2afd6064ad 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb @@ -44,6 +44,12 @@ module ActiveRecord @query_cache_enabled = old end + # Clears the query cache. + # + # One reason you may wish to call this method explicitly is between queries + # that ask the database to randomize results. Otherwise the cache would see + # the same SQL query and repeatedly return the same result each time, silently + # undermining the randomness you were expecting. def clear_query_cache @query_cache.clear if @query_cache end |