我想对嵌套文档中的字段进行运算，获取值后用于过滤

{

	"mappings": {

		"_doc": {

			"date_detection": false,

			"properties": {				

				"EndDay": {

					"type": "integer"

				},

				

				"SalesPlans": {

					"type": "nested",

					"properties": {

						"Id": {

							"type": "keyword"

						},

						"SalesDate": {

							"format": "yyyy-MM-dd'T'HH:mm:ss",

							"type": "date"

						}

					}

				},

				"Id": {

					"type": "integer"

				}

			}

		}

	}

}