原文地址：http://www.cplusplus.com/reference/array/array/end/
public member function
iterator end() noexcept;
const_iterator end() const noexcept;
Return iterator to end
Return
错误信息：
ERROR:
Memory limit exceeded
Query did not have enough memory to get the minimum required buffers in the block manager.
原因：
当impala查询的时候，涉及到了group by havi
