exec_delete

# File activerecord/lib/active_record/connection_adapters/mysql/database_statements.rb, line 75
        def exec_delete(sql, name = nil, binds = [])
          if without_prepared_statement?(binds)
            @lock.synchronize do
              execute_and_free(sql, name) { @connection.affected_rows }
            end
          else
            exec_stmt_and_free(sql, name, binds) { |stmt| stmt.affected_rows }
          end
        end