Fix latest migrations

We made an historical mistake: we have a unique key on videoId,
resolution AND fps. But the filenames and torrent filenames do not have
fps in their name

Remove these duplicate entries

server/initializers/constants.ts

@@ -24,7 +24,7 @@ import { CONFIG, registerConfigChangedHandler } from './config'
 
 // ---------------------------------------------------------------------------
 
-const LAST_MIGRATION_VERSION = 595
+const LAST_MIGRATION_VERSION = 600
 
 // ---------------------------------------------------------------------------
 

server/initializers/migrations/0600-duplicate-video-files.ts

@@ -0,0 +1,33 @@
+import * as Sequelize from 'sequelize'
+
+async function up (utils: {
+  transaction: Sequelize.Transaction
+  queryInterface: Sequelize.QueryInterface
+  sequelize: Sequelize.Sequelize
+  db: any
+}): Promise<void> {
+
+  {
+    const query = 'DELETE FROM "videoFile" f1 ' +
+      'USING (SELECT MIN(id) as id, "torrentFilename" FROM "videoFile" GROUP BY "torrentFilename" HAVING COUNT(*) > 1) f2 ' +
+      'WHERE f1."torrentFilename" = f2."torrentFilename" AND f1.id <> f2.id'
+    await utils.sequelize.query(query)
+  }
+
+  {
+    const query = 'DELETE FROM "videoFile" f1 ' +
+      'USING (SELECT MIN(id) as id, "filename" FROM "videoFile" GROUP BY "filename" HAVING COUNT(*) > 1) f2 ' +
+      'WHERE f1."filename" = f2."filename" AND f1.id <> f2.id'
+    await utils.sequelize.query(query)
+  }
+
+}
+
+function down (options) {
+  throw new Error('Not implemented.')
+}
+
+export {
+  up,
+  down
+}