title: CouchDB Full Text Search
body: <p>i need some direction about full text search in couchdb. Is it already enabled by default in 2.0, or do we have to rebuild couchdb enabling it?</p>
  
  <p>Scenario:
  It is a document management system, documents are shown in a grid. I need to be able to sort results. After several changes from map reduces to elastic indexes, now i am trying to use mango queries. Problem is that sorting does not give the expected results.</p>
  
  <pre><code>{
    "selector": {
      "directoryName": {
        "$eq": "mail\\test\\inbox"
      }},
      "sort": [{"subject": "asc"}]
  }
  </code></pre>
  
  <p>Trying to sort by "subject" or other text field, mixes results with, i suppose, "index logic" (e.g.: returned sorted subjects: "This email...", "Hello...", "This email...", definetly not what i need). Dont remember if analyzers, tokens, etc, have something to do with "weird" search results. With date fields desc sort, for example, it works much better, but i have an "intruder" result of a document of year 2014 when showing documents from 2017 to desc, having 2016 and 2015 documents.</p>
  
  <p>I have created indexes of type json for a few of the possible document sorting fields. Creating a text type index does not work. I do not know it full text search will solve my "sorting" problems, but with all the references to cloudant query language and full text search, i thought that this feature was included in 2.0.</p>