doctrine2/tests/Doctrine/Tests/ORM/Mapping/xml/Doctrine.Tests.ORM.Mapping.Comment.dcm.xml

<?xml version="1.0" encoding="UTF-8"?>

<doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping
                          http://www.doctrine-project.org/schemas/orm/doctrine-mapping.xsd">

    <entity name="Doctrine\Tests\ORM\Mapping\Comment">

        <indexes>
            <index columns="content" flags="fulltext">
                <options>
                    <option name="where">content IS NOT NULL</option>
                </options>
            </index>
        </indexes>

        <field name="content" type="text"/>

    </entity>

</doctrine-mapping>