title: Multiple tokenizers inside one Custom Analyser in Elasticsearch
body: <p>I am using Custom NGRAM Analyzer which has a ngram tokenizer. I have also used lowercase filter. The query is working fine for searches without characters. But when I am searching for certain symbols, it fails. Since I have used lower case tokenizers, Elasticsearch doesn't analyse symbols. I know whitespace tokenizer can help me solve the issue. How can I use two tokenizers in a single analyzer?Below is the mapping:</p>
  
  <pre><code>{
    "settings": {
      "analysis": {
        "analyzer": {
          "my_analyzer": {
            "tokenizer":"my_tokenizer",
            "filter":"lowercase"
          }
        },
        "tokenizer": {
          "my_tokenizer": {
            "type": "ngram",
            "min_gram": 3,
            "max_gram": 3,
            "token_chars": [
              "letter", 
              "digit"
            ]
          }
        }
      }
    },
      "mappings": {
      "_doc": {
        "properties": {
          "title": {
            "type": "text",
            "analyzer": "my_analyzer"
          }
        }
      }
    }
  
  }
  </code></pre>
  
  <p>Is there a way I could solve this issue?</p>