如何在Elasticsearch中进行此查询？

Question

Postgresql query like this :

select * from equipment where production_day < now() + interval '-1 years' * endurance_period + interval '1 month'

endurance_period is column name in table. How can I convert this query to Query DSL(JSON) in ElasticSearch?

Answer 1

you can do date time manipulations for fields on date fields

Small example of using date math/function manipulations inside the range filter

{
    "range" : {
        "date" : {
            "gte" : "now-1d/d",
            "lt" :  "now/d"
        }
    }
}

so your query may look more or less like this

{
    "query": {
        "filtered": {
            "filter": {
                "bool": {
                    "must": [{
                        "range": {
                            "created_at": {
                                "lte": "now-1*3d/d"
                            }
                        }
                    }]
                }
            }
        }
    }
}

you can extend the gte equation to match your search filter criteria.

Date Function elasticsearch