北京网站关键词,采集站seo赚钱辅导班,ui设计师要学什么,知识库管理系统方案多桶型聚合 1.词条聚合–terms 2.范围聚合–range 3,直方图聚合–histogram/日期直方图 4.嵌套聚合 5.地理距离聚合 include(包含)exclude(不包含)
GET /get-together/_search?pretty
{size: 0,aggs: {tags: {terms: {size: 0,aggs: {tags: {terms: {field: tags.verbatim,include: .*search.*}}}
}range范围聚合统计
GET /get-together/_search
{aggs: {attendees_breakdown: {range: {script: {source: doc[attendees].size()},ranges: [{to: 4},{from: 4,to: 6},{from: 6}]}}}
}histogram定义一个固定间距,es会自动构建范围.
#ES会构建从最小值开始的范围,并不断加入interval,
#直到包含最大值
GET /get-together/_search
{aggs: {attendees_histogram: {histogram: {script: {source: doc[attendees].size()},interval: 1}}}
}通过嵌套聚合获得结果分组
