文本字段上的 Elasticsearch 日期范围查询

Question

I have 2 date fields in my documents say date_field_1 and date_field_2 . All documents has date_feild_1 data, but for date_filed_2 few of them have empty string. Because of this date_field_1 is marked as date field and date_field_2 is marked as text field.

Now when I try executing the query,

{"range": {"date_field_1": {"gte": "2022-05-23", "lte": "2022-05-23"}}}

I am getting proper results. But when I try the same for date_field_2 I am getting empty result. Is there a way to apply range query to date_field_2 over non empty documents?

Answer 1

You can use regex eventually:

{
    "range": {
        "date_field_2": "2022-0[3-6]-[0-9][0-9]"
    }
}

The above query will return anything in between 2022-03-01 and 2022-06-30
Basically you request data that contain in date_field_2 a value that contain 2022-0 then any number in 3-6 range, then a - and any 2 numbers in 0-9 range

Please be aware that it will also return wrong values, IF THEY EXISTS (like 2022-03-87 ) but that's a different story