How to perform range searches on Height in elasticsearch - elasticsearch

Question

How to represent Height and HeightRange in Elasticsearch, so that its easier to do range searches
Height.java: int feet, int inches;
HeightRange.java: Height from, Height to
I want to search for users who fall in a certain range (say 5ft - 6ft)

Answer 1

If I understood your issue well, you ay use a range query as follows. I did a local test as follows, where I ingested the following data:
"hits" : [
{
"_index" : "height-index-array",
"_type" : "_doc",
"_id" : "OfCHdXUB1QlsTOLdRJgd",
"_score" : 1.0,
"_source" : {
"user" : "user1",
"height" : {
"feet" : 5,
"inch" : 8
}
}
},
{
"_index" : "height-index-array",
"_type" : "_doc",
"_id" : "CfCJdXUB1QlsTOLdEZxS",
"_score" : 1.0,
"_source" : {
"user" : "user2",
"height" : {
"feet" : 7,
"inch" : 9
}
}
},
{
"_index" : "height-index-array",
"_type" : "_doc",
"_id" : "CvCJdXUB1QlsTOLdEpx5",
"_score" : 1.0,
"_source" : {
"user" : "user3",
"height" : {
"feet" : 5,
"inch" : 6
}
}
},
{
"_index" : "height-index-array",
"_type" : "_doc",
"_id" : "C_CJdXUB1QlsTOLdE5yk",
"_score" : 1.0,
"_source" : {
"user" : "user4",
"height" : {
"feet" : 5,
"inch" : 8
}
}
},
{
"_index" : "height-index-array",
"_type" : "_doc",
"_id" : "T_CJdXUB1QlsTOLdFZwx",
"_score" : 1.0,
"_source" : {
"user" : "user5",
"height" : {
"feet" : 2,
"inch" : 3
}
}
}
]
The query which I used to query the the height in feet between 5 and 6:
"query": {
"range": {
"height.feet": {
"gte": 5,
"lte": 6
}
}
}
The gte is equivalent to greater than or equal to and the lte is equivalent to less than or equal to.
The results are:
"hits" : {
"total" : {
"value" : 3,
"relation" : "eq"
},
"max_score" : 1.0,
"hits" : [
{
"_index" : "height-index-array",
"_type" : "_doc",
"_id" : "OfCHdXUB1QlsTOLdRJgd",
"_score" : 1.0,
"_source" : {
"user" : "user1",
"height" : {
"feet" : 5,
"inch" : 8
}
}
},
{
"_index" : "height-index-array",
"_type" : "_doc",
"_id" : "CvCJdXUB1QlsTOLdEpx5",
"_score" : 1.0,
"_source" : {
"user" : "user3",
"height" : {
"feet" : 5,
"inch" : 6
}
}
},
{
"_index" : "height-index-array",
"_type" : "_doc",
"_id" : "C_CJdXUB1QlsTOLdE5yk",
"_score" : 1.0,
"_source" : {
"user" : "user4",
"height" : {
"feet" : 5,
"inch" : 8
}
}
}
]
}
Let me know if you have any issues, I will be glad to help :)
As per your request, if you need to combine both metrics, you may use a bool query:
"query": {
"bool": {
"must": [
{
"range": {
"height.feet": {
"gte": 5,
"lte": 6
}
}
},{
"range": {
"height.inch": {
"gte": 6,
"lte": 8
}
}
}
]
}
}
The response:
"hits" : [
{
"_index" : "height-index-array",
"_type" : "_doc",
"_id" : "OfCHdXUB1QlsTOLdRJgd",
"_score" : 2.0,
"_source" : {
"user" : "user1",
"height" : {
"feet" : 5,
"inch" : 8
}
}
},
{
"_index" : "height-index-array",
"_type" : "_doc",
"_id" : "CvCJdXUB1QlsTOLdEpx5",
"_score" : 2.0,
"_source" : {
"user" : "user3",
"height" : {
"feet" : 5,
"inch" : 6
}
}
},
{
"_index" : "height-index-array",
"_type" : "_doc",
"_id" : "C_CJdXUB1QlsTOLdE5yk",
"_score" : 2.0,
"_source" : {
"user" : "user4",
"height" : {
"feet" : 5,
"inch" : 8
}
}
}
]
Links:
https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-range-query.html
https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-bool-query.html