DoctrineExtensions/lib/Gedmo/Translatable/Mapping/Metadata/translation/Translation.orm.xml

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

<doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping">
    
    <entity name="Gedmo\Translatable\Entity\Translation" repository-class="Gedmo\Translatable\Entity\Repository\TranslationRepository" table="ext_translations">
        <unique-constraints>
            <unique-constraint name="lookup_unique_idx" columns="locale,object_class,foreign_key,field" />
        </unique-constraints>
        
        <indexes>
            <index name="translations_lookup_idx" columns="locale,object_class,foreign_key" />
        </indexes>
    </entity>

</doctrine-mapping>