I want to do something like this, use script_fields to show the length of comments.
{
"script_fields" : {
"comments" : {
"script" : "doc['comments'].values.size()"
}
}
}
but comments is a nested type. which looks like
{
"comments": [
{
"k": "2016-01-06T00:00:03",
"v": "v1 "
},
{
"k": "2016-01-06T00:00:04",
"v": "v2"
}
]
}
so I want to know "how to use "script fields" on nested type in ElasticSearch?".
This script should work:
"script_fields": {
"custom_field": {
"script": {
"lang": "painless",
"source": "params['_source']['comments'].size()"
}
}
}
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.