Elasticsearch mappings doesn't seem to apply for query - elasticsearch

Question

I use Elasticsearch with Spring Boot application. In this application there
I have index customer, and customer contains field secretKey. This secret key is string that is build from numbers and letters in way FOOBAR-000
My goal was to select exactly one customer by his secret key, so I changed mappings to NOT ANALYZE that fields but it seems not to work. What am I doing wrong?
Here's my mapping
curl -X GET 'http://localhost:9200/customer/_mapping'
{
"customer": {
"mappings": {
"customer": {
"properties": {
"secretKey": {
"type": "string",
"index": "not_analyzed"
}
}
}
}
}
}
but after I will run query
curl -XGET "http:/localhost:9200/customer/_validate/query?explain" -d'
{
"query": {
"query_string": {
"query": "FOOBAR-3121"
}
}
}'
I get following explanation:
"explanations": [
{
"index": "customer",
"valid": true,
"explanation": "_all:foobar _all:3121"
},
]

Answer 1

From my understanding you have an index called "customer" and within this index, a document containing a "customer field. In your case the secretKey should be nested in the "customer" field. For some reasons Elasticsearch decided to have a strange behaviour if you encapsulate objects without specifying that they are of nested type. This is the article from the doc that explains the behaviour in details. If you specify it with the following :
{
"customer": {
"mappings": {
"_doc": {
"properties": {
"customer": {
"type": "nested"
}
}
}
}
}
}
Then it should work with your query

Answer 2

You need to specify field name in your query, without it ElasticSearch executes query against all field, so you see _all . Try this one:
curl -XGET "http:/localhost:9200/customer/_validate/query?explain" -d'
{
"query": {
"term": {
"secretKey": {
"value": "FOOBAR-3121"
}
}
}
}'

Answer 3

My goal was to select exactly one customer by his secret key
Your requirement is strict, so use MATCH query to select ONLY matched customer!
curl -XGET "http:/localhost:9200/customer/_validate/query?explain" -d'
{
"query": {
"match": {
"secretKey": "FOOBAR-3121"
}
}