From f3d6bbbc4a9e8700f5351f1d1b7dc890e998049a Mon Sep 17 00:00:00 2001
From: Tulir Asokan <tulir@maunium.net>
Date: Sat, 30 Oct 2021 23:31:49 +0300
Subject: [PATCH] Replace VARCHAR(255) with TEXT in Matrix state store

---
 .../2021-10-30-varchar-to-text-state-store.go | 22 +++++++++++++++++++
 database/upgrades/upgrades.go                 |  2 +-
 2 files changed, 23 insertions(+), 1 deletion(-)
 create mode 100644 database/upgrades/2021-10-30-varchar-to-text-state-store.go

diff --git a/database/upgrades/2021-10-30-varchar-to-text-state-store.go b/database/upgrades/2021-10-30-varchar-to-text-state-store.go
new file mode 100644
index 0000000..114bf12
--- /dev/null
+++ b/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`,
+		)
+	}}
+}
diff --git a/database/upgrades/upgrades.go b/database/upgrades/upgrades.go
index c0d9260..089fcfc 100644
--- a/database/upgrades/upgrades.go
+++ b/database/upgrades/upgrades.go
@@ -39,7 +39,7 @@ type upgrade struct {
 	fn      upgradeFunc
 }
 
-const NumberOfUpgrades = 29
+const NumberOfUpgrades = 30
 
 var upgrades [NumberOfUpgrades]upgrade