Elasticsearch更新嵌套对象 [英] Elasticsearch Updating nested objects
问题描述
我在互联网上发现了同样的问题,但是我不明白解决方案. 问题是,如何在不更新所有数组的情况下更新Nestend文档.非常感谢.
I found out the same problem in internet, but i dont understand a solution. The problem is, how can i update a nestend document without to update all array. Thank you so much.
这是一个带鼻孔的文档
"links": [
[
{
"note_link_id": "1",
"user_id": "11",
"creation": "2016-11-15T11:21:10",
"modification": "2016-11-15T13:38:04",
"to_asset": "100",
"from_asset": "99",
"comment": "Comment 1."
},
{
"note_link_id": "2",
"user_id": "11",
"creation": "2016-11-15T13:37:04",
"modification": "2016-11-15T13:37:27",
"to_asset": "101",
"from_asset": "99",
"comment": "Comment 2."
},
{
"note_link_id": "3",
"user_id": "11",
"creation": "2016-11-15T14:01:27",
"modification": "2016-11-15T14:02:52",
"to_asset": "102",
"from_asset": "99",
"comment": "Comment 3."
}
]
],
问题:如何更新"note_link_id":"2"并仅更新来自 评论2"改为"blja blja blja"
Question: how can i update "note_link_id": "2" and update only comment from "Comment 2" to "blja blja blja"
我再说一遍,如何在不更新所有字段的情况下更新此数组,例如 "note_link_id":"1","note_link_id":"2"和"note_link_id":"3"
I repeat, how can i update this array without to updating all fields, like "note_link_id": "1", "note_link_id": "2" and "note_link_id": "3"
谢谢
推荐答案
您可以尝试使用部分更新和某些脚本语言.脚本看起来或多或少(在这里是时髦的),就像:
You can try to use Partial Updates and some scripting language. The script would look more or less (here in groovy) like:
if (ctx._source.links != null) {
for (item in ctx._source.links) {
if (item.note_link_id == params.link_id_param) {
item.comment = params.comment_param;
}
}
}
然后将脚本与Update API配合使用:
Then use the script with Update API:
POST /index_name/type_name/document_id/_update
{
"script" : "...",
"params" : {
"link_id_param" : "2",
"comment_param" : "blja blja blja"
}
}
请记住,Elasticsearch中的文档是不可变的,因此从技术上讲整个文档都将重新索引.
Just remember that documents in Elasticsearch are immutable so technically the whole document will be reindexed.
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