Replace VARCHAR(255) with TEXT in Matrix state store

database/upgrades/2021-10-30-varchar-to-text-state-store.go

@@ -0,0 +1,22 @@
+package upgrades
+
+import (
+	"database/sql"
+)
+
+func init() {
+	upgrades[29] = upgrade{"Replace VARCHAR(255) with TEXT in the Matrix state store", func(tx *sql.Tx, ctx context) error {
+		if ctx.dialect == SQLite {
+			// SQLite doesn't enforce varchar sizes anyway
+			return nil
+		}
+		return execMany(tx,
+			`ALTER TABLE mx_registrations ALTER COLUMN user_id TYPE TEXT`,
+			`ALTER TABLE mx_room_state ALTER COLUMN room_id TYPE TEXT`,
+			`ALTER TABLE mx_user_profile ALTER COLUMN room_id TYPE TEXT`,
+			`ALTER TABLE mx_user_profile ALTER COLUMN user_id TYPE TEXT`,
+			`ALTER TABLE mx_user_profile ALTER COLUMN membership TYPE TEXT`,
+			`ALTER TABLE mx_user_profile ALTER COLUMN avatar_url TYPE TEXT`,
+		)
+	}}
+}

database/upgrades/upgrades.go

@@ -39,7 +39,7 @@ type upgrade struct {
 	fn      upgradeFunc
 }
 
-const NumberOfUpgrades = 29
+const NumberOfUpgrades = 30
 
 var upgrades [NumberOfUpgrades]upgrade