Create a Custom Character Filter

  • how-to
    Create a custom character filter with the Couchbase Capella UI to remove unwanted characters from a Search query or the contents of a Search index.


    • You have the Search Service enabled on a node in your database. For more information about how to change Services on your database, see Modify a Database.

    • You have logged in to the Couchbase Capella UI.

    • You have started to create or already created an index in Advanced Mode.


    To create a custom character filter with the Capella UI in Advanced Mode:

    1. On the Databases page, select the database that has the Search index you want to edit.

    2. Go to Data Tools  Search.

    3. Click the index where you want to create a custom character filter.

    4. Under Advanced Settings, expand Custom Filters.

      Make sure you use Advanced Mode.
    5. Click Add Character Filter.

    6. In the Name field, enter a name for the character filter.

    7. In the Regular Expression field, enter the regular expression for the character filter.

    8. (Optional) In the Replacement field, enter a string that replaces any matches for the regular expression.

    9. Click Submit.