Elasticsearch: Get report of unmatched should elements in a bool query - elasticsearch

Question

I'm looking for a way to get a report of unmatched should querys and display it.
For instance I have two user objects
User 1:
{
"username": "user1"
"docType": "user"
"level": "Professor"
"discipline": "Sciences"
"sub-discipline": "Mathematical"
}
User 2:
{
"username": "user1"
"docType": "user"
"level": "Professor"
"discipline": "Sciences"
"subDiscipline": "Physics"
}
When I do a bool query where the matching discipline is in must query and the sub-discipline is in the should query
bool:
must: [{
term: { "doc.docType": "user" }
},{
term: { "doc.level": "professor" }
},{
term: { "doc.discipline": "sciences" }
}],
should: [{
term: { "subDiscipline": "physics" }
}]
How can I get the unmatched elements in my result like that:
Result 1: user1 match 100%
Result 2: user2 match 70% (unmatch subdiscipine "physics")
I had a look into the explainApi but the result doesn't seems to be provided for that use case and seems very complicated to parse.

Answer 1

You will need to use named queries for this.
Using the same , create a bool query like below -
{
"query": {
"bool": {
"must": [
{
"match": {
"SourceName": {
"query": "CNN",
"_name": "sourceMatch"
}
}
},
{
"match": {
"author": {
"query": "qbox.io",
"_name": "author"
}
}
}
]
}
}
}
In the result section , it will tell which all named queries matched.
You can use this information to fabricate the stats you are looking for.