elasticsearch Elasticsarch：原始字段和关键字字段之间的差异

在Elasticsearch 7中，考虑以下三种映射：

        "properties" : {
             "actors" : {
               "type" : "text",
               "fields" : {"keyword" : {"type" : "keyword","ignore_above" : 25}}
             },

及

及

actors.keyword、actors.raw和actor.custom_字段之间有什么区别

---

谢谢

它们是一样的。它们只是三个字段，类型为关键字，名称不同

  "properties" : {
             "actors" : {
               "type" : "text",
               "fields" : {"raw" : {"type" : "keyword","ignore_above" : 25}}
             },

  "properties" : {
             "actors" : {
               "type" : "text",
               "fields" : {"custom_field" : {"type" : "keyword","ignore_above" : 25}}
             },