module ActiveRecord::ConnectionAdapters::Deduplicable  
        
        Public instance methods
              Alias for:
              deduplicate.
            
              Also aliased as:
              
              -@.
            
Source code GitHub
# File activerecord/lib/active_record/connection_adapters/deduplicable.rb, line 18
def deduplicate
  self.class.registry[self] ||= deduplicated
end