Avoid old issue regarding duplicated hosts in db

server/initializers/migrations/0275-video-file-unique.ts

@@ -5,6 +5,12 @@ async function up (utils: {
   queryInterface: Sequelize.QueryInterface
   sequelize: Sequelize.Sequelize
 }): Promise<any> {
+  // Delete duplicated keys
+  {
+    const query = 'DELETE FROM "server" s1 USING "server" s2 WHERE s1.id < s2.id AND s1."host" = s2."host"'
+    await utils.sequelize.query(query)
+  }
+
   {
     const query = 'DELETE FROM "videoFile" vf1 USING "videoFile" vf2 WHERE vf1.id < vf2.id ' +
       'AND vf1."videoId" = vf2."videoId" AND vf1.resolution = vf2.resolution AND vf1.fps IS NULL'