我嘗試使用 ES "copy_to" 屬性將物件欄位復制到嵌套欄位中，但盡管我多次嘗試，但仍出現錯誤。這是我的結構：
...
"identifiedBy": {
"type": "object",
"properties": {
"type": {
"type": "keyword",
"copy_to": "nested_identifiers.type"
},
"value": {
"type": "text",
"analyzer": "identifier-analyzer",
"copy_to": "nested_identifiers.type"
},
"note": {
"type": "text"
},
"qualifier": {
"type": "keyword"
},
"source": {
"type": "keyword",
"copy_to": "nested_identifiers.type"
},
"status": {
"type": "text"
}
}
},
"nested_identifiers": {
"type": "nested",
"properties": {
"type": {
"type": "keyword",
},
"value": {
"type": "text",
"analyzer": "identifier-analyzer",
},
"source": {
"type": "keyword",
}
}
}
...
映射誤差為
java.lang.IllegalArgumentException: Illegal combination of [copy_to] and [nested]
mappings: [copy_to] may only copy data to the current nested document or any of its
parents, however one [copy_to] directive is trying to copy data from nested object [null]
to [nested_identifiers]
- 我還嘗試將“copy_to”放在“identifiedBy”根級別：不起作用。
- 我還嘗試將“欄位”屬性用于“identifiedBy”和“copy_to”這個子欄位：不起作用。
有誰知道解決我的問題的解決方案？
謝謝你的幫助。
uj5u.com熱心網友回復：
特長;
因為如何Elasticsearch索引嵌套檔案。這是不可能的……不更新映射。
確實有一種解決方法，使用include_in_root: true setting。
否則，我建議您在索引資料之前對其進行預處理，并在此預處理程序中將資料復制到嵌套欄位。也許使用攝取管道？
攝取管道
PUT /72270706/
{
"mappings": {
"properties": {
"root_type":{
"type": "keyword"
},
"nested_doc":{
"type": "nested",
"properties": {
"nested_type":{
"type": "keyword"
}
}
}
}
}
}
PUT _ingest/pipeline/set_nested_type
{
"processors": [
{
"set": {
"field": "nested_doc.nested_type",
"copy_from": "root_type"
}
}
]
}
POST /72270706/_doc?pipeline=set_nested_type
{
"root_type": "a type"
}
GET /72270706/_search
應該給你
{
"took" : 392,
"timed_out" : false,
"_shards" : {
...
},
"hits" : {
...
},
"max_score" : 1.0,
"hits" : [
{
"_index" : "72270706",
"_id" : "laOB0YABOgujegeQNA8D",
"_score" : 1.0,
"_source" : {
"root_type" : "a type",
"nested_doc" : {
"nested_type" : "a type"
}
}
}
]
}
}
解決方法
...
"identifiedBy": {
"type": "object",
"properties": {
"type": {
"type": "keyword",
"copy_to": "nested_identifiers.type"
},
"value": {
"type": "text",
"analyzer": "identifier-analyzer",
"copy_to": "nested_identifiers.type"
},
"note": {
"type": "text"
},
"qualifier": {
"type": "keyword"
},
"source": {
"type": "keyword",
"copy_to": "nested_identifiers.type"
},
"status": {
"type": "text"
}
}
},
"nested_identifiers": {
"type": "nested",
"include_in_root": true,
"properties": {
"type": {
"type": "keyword",
},
"value": {
"type": "text",
"analyzer": "identifier-analyzer",
},
"source": {
"type": "keyword",
}
}
}
...
您將需要重新索引現有資料。
但請注意，copy_to不會將資訊復制到嵌套物件。但是對于另一個具有相同名稱但沒有嵌套的欄位。
轉載請註明出處，本文鏈接：https://www.uj5u.com/shujuku/476423.html
標籤：弹性搜索