查询子属性
查询子属性
提问于 2019-09-13 06:17:00
我想复制我的索引，但是当一个属性与一个特定值匹配时跳过它。我知道了如何一起排除一个属性，但我需要这样的东西：
exclude 'terms property' WHERE 'source_terminology subproperty' not like '%earthMaterials%
这在ElasticSearch中是可能的，还是我应该用一种不同的方式呢？
POST _reindex
{
"source" : {
"index" : "documents3",
"_source":{
"excludes": [
"terms"
]
}
},
"dest" : {
"index" : "documents4"
}
} 这是我的映射的简化版本：
{
"documents4": {
"mappings": {
"doc": {
"properties": {
"abstract": {
"type": "text"
},
"author": {
"type": "text",
"fields": {
"raw": {
"type": "keyword"
}
}
},
"terms": {
"properties": {
"source_terminology": {
"type": "text",
"fields": {
"keyword": {
"type": "keyword",
}
}
},
"uri": {
"type": "text",
"fields": {
"keyword": {
"type": "keyword",
}
}
}
}
}
}
}
}
}
}下面是我的数据现在的样子：
{
"_index": "documents4",
"_type": "doc",
"_id": "6bf03d1e-f7dc-40c6-a32d-c9aa09e7b051",
"_score": 1,
"_source": {
"terms": [
{
"source_terminology": "exploration-activity-type",
"label": "feasibility study",
"uri": "http://resource.geosciml.org/classifier/cgi/exploration-activity-type/feasibility-study"
},
{
"source_terminology": "earthMaterialsAT",
"label": "rock",
"uri": "http://www.similarto.com/ontologies/lithology/2010/12/earthMaterialsAT#rock"
},
"title": "Miguel Auza Initial Prospectus"
}
}回答 1
Stack Overflow用户
发布于 2019-09-13 13:31:37
您可以使用无痛脚本来添加所需的条件。
POST _reindex
{
"source" : {
"index" : "documents4"
},
"dest" : {
"index" : "documents4-copy3"
},
"script": {
"source": "int index = 0; def list = new ArrayList(); for(term in ctx._source.terms) { if(term.source_terminology =~ /^(?:(?!exploration).)+$/) { list.add(0, index) } index++;} for(item in list) { ctx._source.terms.remove(item)}",
"lang": "painless"
}
} 您需要在elasticsearch.yml文件中将script.painless.regex.enabled值设置为true才能执行此操作。
无痛脚本的格式化版本
int index = 0;
def list = new ArrayList();
for (term in ctx._source.terms) {
if (term.source_terminology = ~ /^(?:(?!earthMaterials).)+$/) {
// Need to add matched index at start to avoid
// index_out_of_bounds_exception when removing items later
list.add(0, index)
// If you try to remove item as soon as match is found,
// you will get concurrent_modification_exception
}
index++;
}
for (item in list) {
ctx._source.terms.remove(item)
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/57915132
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