exec_insert

# File activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb, line 183
        def exec_insert(sql, name, binds, pk = nil, sequence_name = nil)
          val = exec_query(sql, name, binds)
          if !use_insert_returning? && pk
            unless sequence_name
              table_ref = extract_table_ref_from_insert_sql(sql)
              sequence_name = default_sequence_name(table_ref, pk)
              return val unless sequence_name
            end
            last_insert_id_result(sequence_name)
          else
            val
          end
        end