Elastic Search sort by boolean field - elasticsearch

Question

I want to sort my list by true value in a field called trusted.
I have found that the sort option does not support boolean sorting.
How can I achieve this?

Answer 1

If I understood your issue well, I tried to do a test locally on ES version 7.8, and I ingested the following data in my index:
"content": "This is a test",
"trusted": true
"content": "This is a new test",
"trusted": true
"content": "This is not a test",
"trusted": false
Here is the mapping of the index:
"mappings" : {
"properties" : {
"content" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"trusted" : {
"type" : "boolean"
}
}
}
Here is the query when "order" : "desc":
{
"sort": [
{
"trusted": {
"order": "desc"
}
}
]
}
The response:
"hits" : [
{
"_index" : "boolean-sorting",
"_type" : "_doc",
"_id" : "B-YleHQBsTCl1BZvrFdA",
"_score" : null,
"_source" : {
"content" : "This is a test",
"trusted" : true
},
"sort" : [
1
]
},
{
"_index" : "boolean-sorting",
"_type" : "_doc",
"_id" : "CeYleHQBsTCl1BZvtFdJ",
"_score" : null,
"_source" : {
"content" : "This is a new test",
"trusted" : true
},
"sort" : [
1
]
},
{
"_index" : "boolean-sorting",
"_type" : "_doc",
"_id" : "DOYleHQBsTCl1BZvvVfl",
"_score" : null,
"_source" : {
"content" : "This is not a test",
"trusted" : false
},
"sort" : [
0
]
}
]
When "order":"asc", the response is:
"hits" : [
{
"_index" : "boolean-sorting",
"_type" : "_doc",
"_id" : "DOYleHQBsTCl1BZvvVfl",
"_score" : null,
"_source" : {
"content" : "This is not a test",
"trusted" : false
},
"sort" : [
0
]
},
{
"_index" : "boolean-sorting",
"_type" : "_doc",
"_id" : "B-YleHQBsTCl1BZvrFdA",
"_score" : null,
"_source" : {
"content" : "This is a test",
"trusted" : true
},
"sort" : [
1
]
},
{
"_index" : "boolean-sorting",
"_type" : "_doc",
"_id" : "CeYleHQBsTCl1BZvtFdJ",
"_score" : null,
"_source" : {
"content" : "This is a new test",
"trusted" : true
},
"sort" : [
1
]
}
]
Links:
https://www.elastic.co/guide/en/elasticsearch/reference/current/sort-search-results.html
Please let me know If i wrongly answered, I will be glad to help.