相关疑难解决方法(0)

如何languages从记录中获取所有值的值并使其唯一.

记录

PUT items/1
{ "language" : 10 }

PUT items/2
{ "language" : 11 }

PUT items/3
{ "language" : 10 }

询问

GET items/_search
{ ... }

# => Expected Response
[10, 11]

任何帮助都会很棒.