I have one elasticsearch index in which I have so many records. There is a field username, I want to get latest 1 post of each username by passing comma separated values, example ::
john,shahid,mike,jolie
and I want latest 1 post of each usernames. How can I do this? I can do it by passing one username at a time but it will hit so many http requests. I want to do it in one request.
You could use a filtered terms aggregation coupled with a top_hits one in order to achieve what you need:
{
"size": 0,
"query": {
"bool": {
"filter": {
"terms": {
"username": [ "john", "shahid", "mike", "jolie" ]
}
}
}
},
"aggs": {
"usernames": {
"filter": {
"terms": {
"username": [ "john", "shahid", "mike", "jolie" ]
}
},
"aggs": {
"by_username": {
"terms": {
"field": "username"
},
"aggs": {
"top1": {
"top_hits": {
"size": 1,
"sort" : {"created_date" : "desc"}
}
}
}
}
}
}
}
}
Collected from the Internet
Please contact [email protected] to delete if infringement.
Comments