[英]Elasticsearch query filter by unique field
Using Elasticsearch, I have employees mapped, each employee belonging to some team. 使用Elasticsearch,我可以映射员工,每个员工都属于某个团队。 Every team should have a team leader and I need to validate that.
每个团队都应该有一个团队负责人,我需要对此进行验证。 Is there a way to search for every team on its own, but in one query, to verify it has an employee with the field "is_leader": true?
有没有一种方法可以自行搜索每个团队,但是在一个查询中,以确认它是否具有字段为“ is_leader”的员工:true? I would like to get results of all teams lacking a team leader.
我想获得所有缺少团队领导者的团队的成果。
{
{
"_type": "employee",
"name": "Jade",
"team": "A",
"is_leader": false,
},
{
"_type": "employee",
"name": "Jack",
"team": "A",
"is_leader": false,
},
{ "_type": "employee",
"name": "Sarah",
"team": "A",
"is_leader": true,
},
{ "_type": "employee",
"name": "Jim",
"team": "B",
"is_leader": false,
},
{ "_type": "employee",
"name": "Don",
"team": "B",
"is_leader": false,
},
{ "_type": "employee",
"name": "Jess",
"team": "B",
"is_leader": false,
},
}
You can use a terms
aggregation on the team
field to separate all teams, and then use another terms
sub-aggregation on the is_leader
field. 您可以在
team
字段上使用terms
汇总来分隔所有团队,然后在is_leader
字段上使用另一个terms
子汇总。 That way you'll get the count for leader vs not-leader for each team. 这样,您将获得每个团队的领导者与非领导者的计数。 The teams with 0 leader will stand out:
领导者为0的团队将脱颖而出:
{
"size": 0,
"aggs": {
"teams": {
"terms": {
"field": "team"
},
"aggs": {
"leaders": {
"terms": {
"field": "is_leader"
}
}
}
}
}
}
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