对一个字符串类型的字段进行排序通常不准确，因为已经被分词成多个词条了
解决方式：对字段索引两次，一次索引分词（用于搜索），一次索引不分词(用于排序)
GET /lib3/_search
GET /lib3/user/_search
{
"query": {
"match_all": {}
},
"sort": [
{
"interests": {
"order": "desc"
}
}
]
}
GET /lib3/user/_search
{
"query": {
"match_all": {}
},
"sort": [
{
"interests.raw": {
"order": "asc"
}
}
]
}
DELETE lib3
PUT /lib3
{
"settings":{
"number_of_shards" : 3,
"number_of_replicas" : 0
},
"mappings":{
"user":{
"properties":{
"name": {"type":"text"},
"address": {"type":"text"},
"age": {"type":"integer"},
"birthday": {"type":"date"},
"interests": {
"type":"text",
"fields": {
"raw":{
"type": "keyword"
}
},
"fielddata": true
}
}
}
}
}
