{
...
"shirt_sizes":["XL","L","M","S"]
...
}
如何在elasticsearch中创建shirt_size字段的聚合?
答案 0 :(得分:1)
假设我正确理解您的问题,您需要使用terms aggregation。您可能还希望"shirt_sizes"
字段为not_analyzed
。
作为一个简单的例子,我设置了一个带有未分析字段的索引,并添加了几个文档:
PUT /test_index
{
"mappings": {
"doc": {
"properties": {
"shirt_sizes": {
"type": "string",
"index": "not_analyzed"
}
}
}
}
}
POST /test_index/doc/_bulk
{"index":{"_id":1}}
{"shirt_sizes":["XL","L","M","S"]}
{"index":{"_id":2}}
{"shirt_sizes":["L","M","S","XS"]}
然后我可以通过简单的聚合来恢复所有尺寸:
POST /test_index/_search?search_type=count
{
"aggs": {
"shirt_sizes_terms": {
"terms": {
"field": "shirt_sizes"
}
}
}
}
...
{
"took": 2,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"failed": 0
},
"hits": {
"total": 2,
"max_score": 0,
"hits": []
},
"aggregations": {
"shirt_sizes_terms": {
"buckets": [
{
"key": "L",
"doc_count": 2
},
{
"key": "M",
"doc_count": 2
},
{
"key": "S",
"doc_count": 2
},
{
"key": "XL",
"doc_count": 1
},
{
"key": "XS",
"doc_count": 1
}
]
}
}
}
以下是我使用的代码:
http://sense.qbox.io/gist/9d759c95c8794be7786b0248f58bfdec6da7510f