kibana连接ES，报错no [query] registered for [filtered]

Elasticsearch显示版本：Version: 5.5.1
按照 https://es.xiaoleilu.com/080_S ... .html 中的文档，
POST /my_store/products/_bulk
{ "index": { "_id": 1 }}
{ "price" : 10, "productID" : "XHDK-A-1293-#fJ3" }
{ "index": { "_id": 2 }}
{ "price" : 20, "productID" : "KDKE-B-9947-#kL5" }
{ "index": { "_id": 3 }}
{ "price" : 30, "productID" : "JODL-X-1937-#pV7" }
{ "index": { "_id": 4 }}
{ "price" : 30, "productID" : "QQPX-R-3956-#aD8" }
后查询：
GET /my_store/products/_search
{
"query" : {
"filtered" : {
"query" : {
"match_all" : {}
},
"filter" : {
"term" : {
"price" : 20
}
}
}
}
}
报错：
{
"error": {
"root_cause": [
{
"type": "parsing_exception",
"reason": "no [query] registered for [filtered]",
"line": 3,
"col": 22
}
],
"type": "parsing_exception",
"reason": "no [query] registered for [filtered]",
"line": 3,
"col": 22
},
"status": 400
}
请问这是什么原因？解析异常？API格式错误？