{"id":5967,"date":"2018-11-19T01:07:37","date_gmt":"2018-11-19T09:07:37","guid":{"rendered":"https:\/\/www.couchbase.com\/blog\/?p=5967"},"modified":"2023-10-20T10:17:51","modified_gmt":"2023-10-20T17:17:51","slug":"full-text-search-indexing-best-practices","status":"publish","type":"post","link":"https:\/\/www.couchbase.com\/blog\/full-text-search-indexing-best-practices\/","title":{"rendered":"Full-Text Search Indexing Best Practices & Tips – Part 1"},"content":{"rendered":"

Full-Text Search – <\/b>Indexing Tips <\/b><\/h3>\n

Understanding the Full-Text Search (FTS) indexing options are essential for building the right index<\/a> for the job at hand. The <\/span>right index<\/span><\/i> here refers to a lean and rich enough inverted index that can serve those various types of customer search requests.<\/span><\/p>\n

Some indexing best practices<\/a> to keep in mind while creating an FTS index include the following.<\/span><\/p>\n

 <\/p>\n

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  1. \n

    \u00a0Avoid <\/b>default<\/i><\/b> type mapping at production<\/b><\/h4>\n<\/li>\n<\/ol>\n

    When a user creates an FTS index from the Couchbase web console, the pre-defined type mapping option chosen for an index is <\/span>default<\/span><\/i>. This is a special type of mapping applie<\/span>d to each document whose type <\/span>either<\/span><\/i> does not match a user-specified type mapping <\/span>or<\/span><\/i> has no recognized type attribute.<\/span><\/p>\n

    Therefore, if the default mapping is left enabled, all documents with all fields are included in the index. This will occur regardless of whether the user actively specifies type mappings or not. <\/span><\/p>\n

    The <\/span>default<\/span><\/i> dynamic mapping produces larger indexes and is potentially unsuitable for production deployments.<\/span><\/p>\n

    Disable the default type mapping, as shown below, to ensure that only user-specified type mappings are included in the index.<\/span><\/p>\n

    \"default<\/p>\n

     <\/p>\n

      \n
    1. \n

      \u00a0Specify the right <\/b>type<\/i><\/b> mappings<\/b><\/h4>\n<\/li>\n<\/ol>\n

      Identify the fields on which you need to make the documents searchable and define a custom type mapping mentioning the fields to be indexed. You may identify and index only a subset of your document types by specifying a single \/ set of type mappings you are interested in.<\/span><\/p>\n

      \"user<\/p>\n

      Further read: <\/span>https:\/\/docs.couchbase.com\/server\/6.0\/fts\/fts-creating-indexes.html#specifying-type-identifiers<\/span><\/a><\/p>\n

       <\/p>\n

        \n
      1. \n

        Choose the optimum field <\/b>indexing options<\/i><\/b><\/h4>\n<\/li>\n<\/ol>\n

        While specifying a field for indexing, there are few important indexing options to reckon with.<\/span><\/p>\n

        \"field<\/p>\n