schema: Remove DEFAULT for TEXT

data/schema/schema-3.sql

@@ -11,21 +11,21 @@ CREATE TABLE IF NOT EXISTS playlist_items (
   collection_id INTEGER,
   url TEXT,
 
-  title TEXT NOT NULL,
-  album TEXT NOT NULL,
-  artist TEXT NOT NULL,
-  albumartist TEXT NOT NULL,
+  title TEXT,
+  album TEXT,
+  artist TEXT,
+  albumartist TEXT,
   track INTEGER NOT NULL DEFAULT -1,
   disc INTEGER NOT NULL DEFAULT -1,
   year INTEGER NOT NULL DEFAULT -1,
   originalyear INTEGER NOT NULL DEFAULT 0,
-  genre TEXT NOT NULL,
+  genre TEXT,
   compilation INTEGER NOT NULL DEFAULT -1,
-  composer TEXT NOT NULL,
-  performer TEXT NOT NULL,
-  grouping TEXT NOT NULL,
-  comment TEXT NOT NULL,
-  lyrics TEXT NOT NULL,
+  composer TEXT,
+  performer TEXT,
+  grouping TEXT,
+  comment TEXT,
+  lyrics TEXT,
 
   beginning INTEGER NOT NULL DEFAULT 0,
   length INTEGER NOT NULL DEFAULT 0,
@@ -36,7 +36,7 @@ CREATE TABLE IF NOT EXISTS playlist_items (
 
   source INTEGER NOT NULL DEFAULT 0,
   directory_id INTEGER,
-  filename TEXT,
+  filename TEXT NOT NULL,
   filetype INTEGER NOT NULL DEFAULT 0,
   filesize INTEGER,
   mtime INTEGER,