(guild admin): Autoroles and role persistence.

data/migration/v3-v4/migration.sql

@@ -2,8 +2,30 @@ ALTER TABLE guild_config
   ADD COLUMN greeting_channel BIGINT,
   ADD COLUMN greeting_message TEXT,
   ADD COLUMN returning_message TEXT,
-  ADD COLUMN starting_funds INTEGER;
+  ADD COLUMN starting_funds INTEGER,
+  ADD COLUMN persist_roles BOOLEAN;
 
 CREATE INDEX rented_members_users ON rented_members (userid);
 
+CREATE TABLE autoroles(
+  guildid BIGINT NOT NULL ,
+  roleid BIGINT NOT NULL
+);
+CREATE INDEX autoroles_guilds ON autoroles (guildid);
+
+CREATE TABLE bot_autoroles(
+  guildid BIGINT NOT NULL ,
+  roleid BIGINT NOT NULL
+);
+CREATE INDEX bot_autoroles_guilds ON bot_autoroles (guildid);
+
+CREATE TABLE past_member_roles(
+  guildid BIGINT NOT NULL,
+  userid BIGINT NOT NULL,
+  roleid BIGINT NOT NULL,
+  _timestamp TIMESTAMPTZ DEFAULT now(),
+  FOREIGN KEY (guildid, userid) REFERENCES members (guildid, userid)
+);
+CREATE INDEX member_role_persistence_members ON past_member_roles (guildid, userid);
+
 INSERT INTO VersionHistory (version, author) VALUES (4, 'v3-v4 Migration');