Searching special characters in elastic

Elastic Stack Elasticsearch
1

Hello, I have a problem I could not index special characters in Elasticsearch. I try to do it like that:

PUT my-index-000001
{
    "settings": {
        "index": {
            "max_result_window": 100000,
            "number_of_replicas": 0
        },
        "analysis": {
            "filter": {
                "autocomplete_filter": {
                    "type": "edge_ngram",
                    "min_gram": 1,
                    "max_gram": 35
                }
            },
            "analyzer": {
                "autocomplete": {
                    "type": "custom",
                    "tokenizer": "my_tokenizer",
                    "filter": [
                        "lowercase",
                        "autocomplete_filter"
                    ]
                }
            },
            "tokenizer": {
                "my_tokenizer": {
                    "type": "edge_ngram",
                    "min_gram": 1,
                    "max_gram": 35,
                    "tokenize_on_chars": [
                        "%"
                    ]
                }
            }
        }
    },
    "mappings": {
        "properties": {
        }
    }
}

POST my-index-000001/_doc/
{
  "@timestamp": "2099-11-15T13:12:00",
  "message": "GET /search HTTP/1.1 200 1070000",
  "user": {
    "id": "kimchy % D"
  }
}

but I could not receive anything by search request:

GET my-index-000001/_search
{
    "size": 10000,
    "query": {
        "term": {
            "user.id": "%"
        }
    }
}

Could you help me please?

2

Welcome!

In the mapping you did not define any field and the analyzer to apply on the fields. So user.id is using the standard analyzer by default.
You must fix that part.

3

Could you please show me how to fix this?

4

Sure. Look at: Specify an analyzer | Elasticsearch Guide [8.12] | Elastic

5

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