【发布时间】：2019-07-18 11:59:57
【问题描述】：
我在使用 Elasticsearch 6.8 时遇到了一些问题：
我的过滤器查询与类别中的字符串“Empty”不匹配
("category.category:Empty doesn't match id 3991")
所有的 category.category 都有这个相同的值来调试这个问题。
但它应该与完全相同的术语一样工作，作为文本字段存储在 Elastic 中，当我尝试过滤通道字段“13thstreethd”但类别字段没有过滤器匹配时，它完美匹配，我不知道为什么！
这是映射：
{
"broadcasttest": {
"aliases": {},
"mappings": {
"doc": {
"properties": {
"category": {
"properties": {
"category": {
"type": "text"
}
}
},
"channel": {
"properties": {
"channel": {
"type": "text"
}
}
},
"genre": {
"properties": {
"genre": {
"type": "text"
}
}
},
"title": {
"type": "text"
}
}
}
},
"settings": {
"index": {
"creation_date": "1563430845642",
"number_of_shards": "1",
"number_of_replicas": "0",
"uuid": "Y1V-LEQoQuW2tMZmnTXDxw",
"version": {
"created": "6080099"
},
"provided_name": "broadcasttest"
}
}
}
}
一个文档：
{
"_index": "broadcasttest",
"_type": "doc",
"_id": "3933239",
"_source": {
"title": "Law & Order: Special Victims Unit",
"category": [
{
"category": "Empty"
}
],
"genre": [
{
"genre": "Crime"
}
],
"channel": [
{
"channel": "13thstreethd"
}
]
}
}
http://127.0.0.1:9200/broadcasttest/doc/3933239/_explain
{
"query": {
"bool": {
"should": [
{
"match": {
"category.category": {
"query": "Empty"
}
}
}
],
"filter": [
{
"term": {
"category.category": "Empty"
}
}
]
}
}
}
返回结果：
{
"_index": "broadcasttest",
"_type": "doc",
"_id": "3933239",
"matched": false,
"explanation": {
"value": 0,
"description": "Failure to meet condition(s) of required/prohibited clause(s)",
"details": [
{
"value": 0.000034882705,
"description": "weight(category.category:empty in 3991) [PerFieldSimilarity], result of:",
"details": [
{
"value": 0.000034882705,
"description": "score(doc=3991,freq=1.0 = termFreq=1.0\n), product of:",
"details": [
{
"value": 0.000034882705,
"description": "idf, computed as log(1 + (docCount - docFreq + 0.5) / (docFreq + 0.5)) from:",
"details": [
{
"value": 14333,
"description": "docFreq",
"details": []
},
{
"value": 14333,
"description": "docCount",
"details": []
}
]
},
{
"value": 1,
"description": "tfNorm, computed as (freq * (k1 + 1)) / (freq + k1 * (1 - b + b * fieldLength / avgFieldLength)) from:",
"details": [
{
"value": 1,
"description": "termFreq=1.0",
"details": []
},
{
"value": 1.2,
"description": "parameter k1",
"details": []
},
{
"value": 0.75,
"description": "parameter b",
"details": []
},
{
"value": 1,
"description": "avgFieldLength",
"details": []
},
{
"value": 1,
"description": "fieldLength",
"details": []
}
]
}
]
}
]
},
{
"value": 0,
"description": "no match on required clause (category.category:Empty)",
"details": [
{
"value": 0,
"description": "category.category:Empty doesn't match id 3991",
"details": []
}
]
}
]
}
}
【问题讨论】：
标签： elasticsearch