Question

我将PHP MySQL应用程序转换为Elasticsearch，这是我的PHP MySQL查询以及如何将此查询写入Elasticseach（版本5.5）

我尝试编写聚合，但结果与旧的MySQL结果计数不匹配。

SELECT COUNT(DISTINCT offerName, `OfferID`, `duration`, `price`, `numChannels`, providerName) AS "totalRecords" FROM `video` WHERE `active` = 'Y'

这是我的Elasticsearch查询：

{
 "size": 0,
"query":

        { "bool": {
            "should": [ 
                    { "match": { "active": "Y" }}
                ]
            }
        }, 
"aggs": {
    "count_by_OfferID": {
        "terms": {
            "field": "offerID"
        }
    },
    "count_by_offerName":{
          "terms": {
            "field": "offerName"
        }
    },
    "count_by_duration":{
         "terms": {
            "field": "duration"
        }
    },
     "count_by_price":{
         "terms": {
            "field": "price"
        }
     },
       "count_by_downloadSpeed":{
         "terms": {
            "field": "downloadSpeed"
        }
     },
     "count_by_numChannels":{
         "terms": {
            "field": "numChannels"
        }
     },
       "count_by_providerName":{
         "terms": {
            "field": "providerName"
        }
     }
        }

}

Answer 1

也许您应该修改映射，以便更有效地获得答案，但Elasticsearch的{{1}}称为DISTINCT COUNT聚合，它支持ad-hoc scripting。我希望我能正确理解你的问题。

基数指标支持脚本编写，但是由于需要动态计算哈希值，因此会有明显的性能影响。

怎么做我写的mysql distinct查询到Elasticesearch

1 个答案: