I need help for a query elasticsearch - elasticsearch

Question

I need help for a query.
This is my query and my sample :
GET /product/_search
{
"query": {
"bool" : {
"must" : {
"multi_match" : {
"query": "Torsades",
"fields": [ "ean^10", "name^4", "brand" ]
}
}
}
}
}
[
{
"_index" : "product_2022-05-13-194440",
"_type" : "_doc",
"_id" : "1",
"_score" : 13.78764,
"_source" : {
"country" : 1,
"ean" : "3250391967858",
"name" : "Torsades Semi-complètes BIO - 500G",
"brand" : "Fiorini"
}
},
{
"_index" : "product_2022-05-13-194440",
"_type" : "_doc",
"_id" : "74",
"_score" : 13.78764,
"_source" : {
"country" : null,
"ean" : "3564700009826",
"name" : "Pâtes Torsades - Turini - 500 g",
"brand" : "Turini"
}
},
{
"_index" : "product_2022-05-13-194440",
"_type" : "_doc",
"_id" : "78",
"_score" : 11.964245,
"_source" : {
"country" : null,
"ean" : "3250391967858",
"name" : "Torsades Semi-complètes BIO - 500G - ITM BENCHMARK",
"brand" : "Fiorini"
}
}
]
I want a condition specific and I can't find the solution :
I want :
ALL products for country=1 AND (ALL products for country=null MINUS product.ean IN country=1)
In my sample, I want have 2 hits :
THIS is deleted because EAN in country=1 :
{
"_index" : "product_2022-05-13-194440",
"_type" : "_doc",
"_id" : "78",
"_score" : 11.964245,
"_source" : {
"country" : null,
"ean" : "3250391967858",
"name" : "Torsades Semi-complètes BIO - 500G - ITM BENCHMARK",
"brand" : "Fiorini"
}
}
Someone have a solution ?
EDIT :
I want this result :
[
{
"_index" : "product_2022-05-13-194440",
"_type" : "_doc",
"_id" : "1",
"_score" : 13.78764,
"_source" : {
"country" : 1,
"ean" : "3250391967858",
"name" : "Torsades Semi-complètes BIO - 500G",
"brand" : "Fiorini"
}
},
{
"_index" : "product_2022-05-13-194440",
"_type" : "_doc",
"_id" : "74",
"_score" : 13.78764,
"_source" : {
"country" : null,
"ean" : "3564700009826",
"name" : "Pâtes Torsades - Turini - 500 g",
"brand" : "Turini"
}
}
]

Answer 1

You tried to use Field Collapsing?
GET test/_search
{
"query": {
"bool": {
"must": {
"multi_match": {
"query": "Torsades",
"fields": [
"ean^10",
"name^4",
"brand"
]
}
}
}
},
"collapse": {
"field": "ean.keyword"
}
}
Response:
"hits" : [
{
"_index" : "test",
"_type" : "_doc",
"_id" : "1",
"_score" : 0.5611319,
"_source" : {
"country" : 1,
"ean" : "3250391967858",
"name" : "Torsades Semi-complètes BIO - 500G",
"brand" : "Fiorini"
},
"fields" : {
"ean.keyword" : [
"3250391967858"
]
}
},
{
"_index" : "test",
"_type" : "_doc",
"_id" : "2",
"_score" : 0.5611319,
"_source" : {
"country" : null,
"ean" : "3564700009826",
"name" : "Pâtes Torsades - Turini - 500 g",
"brand" : "Turini"
},
"fields" : {
"ean.keyword" : [
"3564700009826"
]
}
}
]