Change episode table schema.

hammond-data/migrations/2017-12-09-125835_change_episode_pk/down.sql

@@ -0,0 +1,19 @@
+ALTER TABLE episode RENAME TO old_table;
+
+CREATE TABLE episode (
+    id	INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE,
+    title	TEXT,
+    uri	TEXT NOT NULL UNIQUE,
+    local_uri	TEXT,
+    description	TEXT,
+    published_date	TEXT,
+    epoch	INTEGER NOT NULL DEFAULT 0,
+    length	INTEGER,
+    guid	TEXT,
+    played	INTEGER,
+    favorite	INTEGER NOT NULL DEFAULT 0,
+    archive	INTEGER NOT NULL DEFAULT 0,
+    podcast_id	INTEGER NOT NULL
+);
+ 
+INSERT INTO episode SELECT * FROM old_table;

hammond-data/migrations/2017-12-09-125835_change_episode_pk/up.sql

@@ -0,0 +1,22 @@
+ALTER TABLE episode RENAME TO old_table;
+
+CREATE TABLE episode (
+	title	TEXT NOT NULL,
+	uri	TEXT UNIQUE,
+	local_uri	TEXT,
+	description	TEXT,
+	published_date	TEXT,
+	epoch	INTEGER NOT NULL DEFAULT 0,
+	length	INTEGER,
+	guid	TEXT,
+	played	INTEGER,
+	podcast_id	INTEGER NOT NULL,
+	favorite	INTEGER DEFAULT 0,
+	archive	INTEGER DEFAULT 0,
+	PRIMARY KEY (title, podcast_id)
+);
+
+INSERT INTO episode (title, uri, local_uri, description, published_date, epoch, length, guid, played, favorite, archive, podcast_id)
+SELECT title, uri, local_uri, description, published_date, epoch, length, guid, played, favorite, archive, podcast_id
+FROM old_table;
+Drop table old_table;