Improved database schema

- Some queries are faster due to better index ordering
- Database is smaller thanks to splitting message_channel table and
  adding WITHOUT ROWID where helpful

db/ooye-schema.sql

@@ -0,0 +1,61 @@
+BEGIN TRANSACTION;
+CREATE TABLE IF NOT EXISTS "sim" (
+	"discord_id"	TEXT NOT NULL UNIQUE,
+	"sim_name"	TEXT NOT NULL UNIQUE,
+	"localpart"	TEXT NOT NULL UNIQUE,
+	"mxid"	TEXT NOT NULL UNIQUE,
+	PRIMARY KEY("discord_id")
+);
+CREATE TABLE IF NOT EXISTS "webhook" (
+	"channel_id"	TEXT NOT NULL UNIQUE,
+	"webhook_id"	TEXT NOT NULL UNIQUE,
+	"webhook_token"	TEXT NOT NULL,
+	PRIMARY KEY("channel_id")
+);
+CREATE TABLE IF NOT EXISTS "sim_member" (
+	"mxid"	TEXT NOT NULL,
+	"room_id"	TEXT NOT NULL,
+	"profile_event_content_hash"	BLOB,
+	PRIMARY KEY("room_id","mxid")
+) WITHOUT ROWID;
+CREATE TABLE IF NOT EXISTS "member_cache" (
+	"room_id"	TEXT NOT NULL,
+	"mxid"	TEXT NOT NULL,
+	"displayname"	TEXT,
+	"avatar_url"	TEXT,
+	PRIMARY KEY("room_id","mxid")
+) WITHOUT ROWID;
+CREATE TABLE IF NOT EXISTS "file" (
+	"discord_url"	TEXT NOT NULL,
+	"mxc_url"	TEXT NOT NULL,
+	PRIMARY KEY("discord_url")
+) WITHOUT ROWID;
+CREATE TABLE IF NOT EXISTS "guild_space" (
+	"guild_id"	TEXT NOT NULL,
+	"space_id"	TEXT NOT NULL,
+	PRIMARY KEY("guild_id")
+) WITHOUT ROWID;
+CREATE TABLE IF NOT EXISTS "channel_room" (
+	"channel_id"	TEXT NOT NULL,
+	"room_id"	TEXT NOT NULL,
+	"name"	TEXT NOT NULL,
+	"nick"	TEXT,
+	"thread_parent"	TEXT,
+	"custom_avatar"	TEXT,
+	PRIMARY KEY("channel_id","room_id")
+);
+CREATE TABLE IF NOT EXISTS "message_channel" (
+	"message_id"	TEXT NOT NULL,
+	"channel_id"	TEXT NOT NULL,
+	PRIMARY KEY("message_id")
+) WITHOUT ROWID;
+CREATE TABLE IF NOT EXISTS "event_message" (
+	"event_id"	TEXT NOT NULL,
+	"message_id"	TEXT NOT NULL,
+	"event_type"	TEXT,
+	"event_subtype"	TEXT,
+	"part"	INTEGER NOT NULL,
+	"source"	INTEGER NOT NULL,
+	PRIMARY KEY("message_id","event_id")
+) WITHOUT ROWID;
+COMMIT;