<a href="https://stackoverflow.com/questions/36781397/elasticsearch-group-by-id-field-and-perform-max-on-date-field">https://stackoverflow.com/questions/36781397/elasticsearch-group-by-id-field-and-perform-max-on-date-field</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<div style="background-color:#1e1e1e;color:#d4d4d4;font-family:D2Coding, Consolas, 'Courier New', monospace, Consolas, 'Courier New', monospace;font-size:13px;font-weight:normal;line-height:18px;white-space:pre;"><div>// id를 기준으로 createTime이 가장 나중인 document를 가져오기</div><div>GET quiz_11ecbef60500e127aa7e02915ecbc9e4/_search</div><div>{</div><div>&nbsp; "size": 0,</div><div>&nbsp; "aggs": {</div><div>&nbsp; &nbsp;&nbsp;"byid": {</div><div>&nbsp; &nbsp; &nbsp;&nbsp;"terms": {</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&nbsp;"field": "id.keyword"</div><div>&nbsp; &nbsp; &nbsp; },</div><div>&nbsp; &nbsp; &nbsp;&nbsp;"aggs": {</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&nbsp;"max_date": {</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;"top_hits": {</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;"size": 1,</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;"sort": {</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;"createTime": "desc"</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }</div><div>&nbsp; &nbsp; &nbsp; &nbsp; }</div><div>&nbsp; &nbsp; &nbsp; }</div><div>&nbsp; &nbsp; }</div><div>&nbsp; }</div><div>}</div></div> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;