datetime - Elasticsearch如何在日期时间字段中按时间搜索

Question

我有一个假想的索引test与下面的映射

PUT test
{"mappings" : {
      "properties" : {
        "endTs" : {
          "type" : "date",
          "format": "yyyy-MM-dd HH:mm:ss",
          "index": true
        },
        "startTs" : {
          "type" : "date",
          "format": "yyyy-MM-dd HH:mm:ss",
          "index": true
        }
      }
    }
}

并添加如下所示的值

POST _bulk
{ "index" : { "_index" : "test"} }
{ "startTs": "2020-01-01 00:00:00", "endTs": "2020-01-01 00:15:00" }
{ "index" : { "_index" : "test"} }
{ "startTs" : "2020-01-01 00:15:00", "endTs" : "2020-01-01 00:30:00" }
{ "index" : { "_index" : "test"} }
{ "startTs" : "2020-01-01 00:30:00", "endTs" : "2020-01-01 00:45:00" }
{ "index" : { "_index" : "test"} }
{ "startTs" : "2020-01-01 00:45:00", "endTs" : "2020-01-01 01:00:00" }
{ "index" : { "_index" : "test"} }
{ "startTs": "2020-01-01 01:00:00", "endTs": "2020-01-01 01:15:00" }
{ "index" : { "_index" : "test"} }
{ "startTs" : "2020-01-01 01:15:00", "endTs" : "2020-01-01 01:30:00" }
{ "index" : { "_index" : "test"} }
{ "startTs" : "2020-01-01 01:30:00", "endTs" : "2020-01-01 01:45:00" }
{ "index" : { "_index" : "test"} }
{ "startTs" : "2020-01-01 01:45:00", "endTs" : "2020-01-01 02:00:00" }

我的目标是在startTs和endTs字段中运行一些范围查询。像startTs: 2020-01-01 00:00:00'和endTs: 2020-01-01 00:45:00'。我只需要使用time而不是完整的datetime格式进行过滤。所以我尝试了下面的过滤器

GET test/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "range": {
            "startTs": {
              "gte": "00:00:00",
              "format": "HH:mm:ss"
            }
          }
        },
        {
          "range": {
            "endTs": {
              "lte": "00:45:00",
              "format": "HH:mm:ss"
            }
          }
        }
      ]
    }
  }
}

我预计它将返回所有记录值，小于等于2020-01-01 00:45:00

{ "startTs": "2020-01-01 00:00:00", "endTs": "2020-01-01 00:15:00" }
{ "startTs" : "2020-01-01 00:15:00", "endTs" : "2020-01-01 00:30:00" }
{ "startTs" : "2020-01-01 00:30:00", "endTs" : "2020-01-01 00:45:00" }

但是它什么也没有返回。

"hits" : {
    "total" : {
      "value" : 0,
      "relation" : "eq"
    },
    "max_score" : null,
    "hits" : [ ]
  }

然后我尝试

GET test/_search
{
  "query": {
    "bool": {
      "must": [
        {
          "script": {
            "script": {
              "source": "doc['startTs'].value.minute >= 0"
            }
          }
        },
        {
          "script": {
            "script": {
              "source": "doc['endTs'].value.minute <= 45"
            }
          }
        }
      ]
    }
  }
}

它返回所有分钟小于等于45的值，这也是不期望的。

如何在时间范围内运行给定索引的查询？ 非常感谢您的帮助。

我正在使用Elasticsearch 7.6

Answer 1

建议您不要使用从一天开始以来的分钟或秒数(取决于您需要的分辨率)来索引date，而不是索引integer类型。然后对该字段运行范围查询。
date类型不支持您要在此处执行的查询类型。