Exact string search in array in Elasticsearch - arrays

Question

I want to search exact string in array.
My data in ES is like below:
{ category": [
"abc test"
],
"es_flag": false,
"bullet_points": [],
"content": "",
"description": false }
I have multiple category like "abc test", "new abc test" etc...
I am trying below query but I am getting multiple category result, I was searching for "abc test" but "new abc test" category is also coming in the result.
{
"from": 0,
"size": 30,
"query": {
"bool" : {
"must": [
{ "match_phrase": { "category": "abc test" } }
]
}
},
"sort": [ { "createdAt": { "order": "desc" } } ]
}
Help will be appreciated.

Answer 1

I'm assuming you are using default analyzer. In that case match_phrase against "field": "abc test" will match all documents which will have the fields with adjacent tokens of abc test, including:
new abc test
abc test new
foo abc test bar
And it will not match:
abc new test - query tokens are not adjacent
test abc - query tokens are adjacent, but in the wrong order
What would actually help you is using the keyword analyzer for your field (you either need to build new index from scratch or update your mappings). If you're building from scrach:
curl -XPUT http://localhost:9200/my_index -d '
{
"mappings": {
"categories": {
"properties": {
"category": {
"type": "text",
"analyzer": "keyword"
}
}
}
}
}'
And afterwards you need to use just simple query, e.g. like this (either match or term will do):
curl -XGET http://localhost:9200/my_index/_search -d '
{
"query": {
"match" : {
"message" : "abc test"
}
}
}'

Answer 2

My version of elasticsearch is 6.0.1. I am using this approach:
GET <your index>/_search
{
"query": {
"bool": {
"must": [{
"query_string": {
"query": "category:abc OR category:test"
}
}]
}
},
"sort":[{"createdAt": {
"order": "desc"
}}]
}