[英]Update multi level nested document in elasticsearch
使用Elasticsearch 1.7.1,我具有以下文档结构
"_source" : {
"questions" : {
"defaultQuestion" : {
"tag" : 0,
"gid" : 0,
"rid" : 0,
"caption" : "SRID",
},
"tableQuestion" : {
"rows" : [{
"ids" : {
"answerList" : ["3547", "3548"],
"tag" : "0",
"caption" : "Accounts",
},
"name" : {
"answerList" : ["Some Name"],
"tag" : "0",
"caption" : "Name",
}
}
],
"caption" : "BPI 1500541753537",
"id" : 644251570,
"tag" : ""
}
},
"id" : "447722821"
}
我想在questions.tableQuestion.rows中添加一个新对象。 我当前的脚本是用新对象替换现有对象。 请建议如何附加它。 以下是我的更新脚本。
{ "update": {"_id": "935663867", "_retry_on_conflict" : 3} }
{ "script" : "ctx._source.questions += param1", "params" : {"param1" : {"tableQuestion": {"rows" : [ NEWROWOBJECT ]} } }}
您可以在rows属性的右侧,使用下一个嵌套字段构建路径,然后使用+ =运算符。 检查rows数组是否为空并在这种情况下将其初始化也很好。
已通过ES 2.4进行检查,但对于早期版本应与之类似:
POST http://127.0.0.1:9200/sample/demo/{document_id}/_update
{
"script": {
"inline": "if (ctx._source.questions.tableQuestion.rows == null) ctx._source.questions.tableQuestion.rows = new ArrayList(); ctx._source.questions.tableQuestion.rows += param1;",
"params" : {
"param1" : {
"ids": {
"answerList": [
"478",
"255"
],
"tag": "2",
"caption": "My Test"
},
"name": {
"answerList": [
"My Name"
],
"tag": "1",
"caption": "My Demo"
}
}
}
}
}
对于ES 5.x和无痛语言,脚本略有不同:
POST http://127.0.0.1:9200/sample/demo/{document_id}/_update
{
"script": {
"inline": "if (ctx._source.questions.tableQuestion.rows == null) { ctx._source.questions.tableQuestion.rows = new ArrayList();} ctx._source.questions.tableQuestion.rows.add(params.param1);",
"params" : {
"param1" : {
...
}
}
}
}
更新至其他评论
如果路径的某些部分是动态的,则还可以使用参数来构建路径-使用get(param_name)
方法-尝试以下语法(为简单起见,我删除了null检查):
{
"script": {
"inline": "ctx._source.questions.get(param2).rows += param1;",
"params" : {
"param2" : "6105243",
"param1" : {
"ids": {
"answerList": [
"478",
"255"
],
"tag": "2",
"caption": "My Test"
},
"name": {
"answerList": [
"My Name"
],
"tag": "1",
"caption": "My Demo"
}
}
}
}
}
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