您可以使用基于脚本的排序进行排序。
PUT /test_index
POST /test_index/doc/_bulk
{"index":{"_id":1}}
{"name":"Bob"}
{"index":{"_id":2}}
{"name":"Jeff"}
{"index":{"_id":3}}
{"name":"Darlene"}
{"index":{"_id":4}}
{"name":"Jose"}
然后，我可以订购这样的搜索结果：
POST /test_index/_search
{
"query": {
"match_all": {}
},
"sort": {
"_script": {
"script": "doc['name'].value.length()",
"type": "number",
"order": "asc"
}
}
}
...
{
"took": 2,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"Failed": 0
},
"hits": {
"total": 4,
"max_score": null,
"hits": [
{
"_index": "test_index",
"_type": "doc",
"_id": "1",
"_score": null,
"_source": {
"name": "Bob"
},
"sort": [
3
]
},
{
"_index": "test_index",
"_type": "doc",
"_id": "4",
"_score": null,
"_source": {
"name": "Jose"
},
"sort": [
4
]
},
{
"_index": "test_index",
"_type": "doc",
"_id": "2",
"_score": null,
"_source": {
"name": "Jeff"
},
"sort": [
4
]
},
{
"_index": "test_index",
"_type": "doc",
"_id": "3",
"_score": null,
"_source": {
"name": "Darlene"
},
"sort": [
7
]
}
]
}
}
要按长度过滤，我可以通过类似的方式使用脚本过滤器：
POST /test_index/_search
{
"query": {
"filtered": {
"query": {
"match_all": {}
},
"filter": {
"script": {
"script": "doc['name'].value.length() > 3",
"params": {}
}
}
}
},
"sort": {
"_script": {
"script": "doc['name'].value.length()",
"type": "number",
"order": "asc"
}
}
}
...
{
"took": 3,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"Failed": 0
},
"hits": {
"total": 3,
"max_score": null,
"hits": [
{
"_index": "test_index",
"_type": "doc",
"_id": "4",
"_score": null,
"_source": {
"name": "Jose"
},
"sort": [
4
]
},
{
"_index": "test_index",
"_type": "doc",
"_id": "2",
"_score": null,
"_source": {
"name": "Jeff"
},
"sort": [
4
]
},
{
"_index": "test_index",
"_type": "doc",
"_id": "3",
"_score": null,
"_source": {
"name": "Darlene"
},
"sort": [
7
]
}
]
}
}
这是我使用的代码：
http://sense.qbox.io/gist/22fef6dc5453eaaae3be5fb7609663cc77c43dab
如果任何姓氏包含空格，则可能要"index": "not_analyzed"在该字段上使用。
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