How does multi field mapping work in Elastic Search - elasticsearch

Question

I want to support both text search (match query) as well as exact match (term query) on a single field in my elasticsearch index.
Following is the mapping that I have created:
PUT multi_mapping_test/_mapping
{
"properties": {
"name": {
"type": "text",
"fields": {
"keyword": {
"type": "keyword"
}
}
}
}
}
However, the term query is not behaving as I am expecting it to (may be understanding of it is wrong).
For example, here are couple of sample documents indexed:
POST multi_mapping_test/_doc
{
"name": "abc llc"
}
POST multi_mapping_test/_doc
{
"name": "def llc"
}
Following term query yields no results:
GET multi_mapping_test/_search
{
"query": {
"term": {
"name": {
"value": "abc llc"
}
}
}
}
Am I doing anything wrong or is my understanding of exact matches with term query incorrect?
P.S. The term query works fine when I put mapping for only keyword type.

Answer 1

Term query: Returns documents that contain an exact term in a provided field.
When you're searching for exact match you should use keyword field types. Like the following:
GET multi_mapping_test/_search
{
"query": {
"term": {
"name.keyword": {
"value": "abc llc"
}
}
}
}
In addition, You can use bool query for both text search (match query) and exact match (term query) in your elasticsearch index.
GET multi_mapping_test/_search
{
"query": {
"bool": {
"should": [
{
"match": {
"name": "abc llc"
}
},
{
"term": {
"name.keyword": {
"value": "abc llc"
}
}
}
],
"minimum_should_match": 1
}
}
}
Note: You can also use the match_bool_prefix query if you need to autocomplete the feature.
Details: https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-match-bool-prefix-query.html
"abc llc" _score will be higher than "def llc" because it matches both match and term queries.