From 8bd1d22765edef3b3d2ff31c8f8935049d8b280a Mon Sep 17 00:00:00 2001
From: Nicolas Gorga <62995075+NicolasGorga@users.noreply.github.com>
Date: Wed, 10 Dec 2025 09:51:08 -0300
Subject: [PATCH] chore(order): Remove unique index on item_id:version for
 order_item (#14268)

* Remove unique index

* Add changeset

* Remove previous migration file

* Remove down method
---
 .changeset/sour-papayas-relax.md                    |  5 +++++
 .../src/migrations/.snapshot-medusa-order.json      |  9 ---------
 .../order/src/migrations/Migration20251130184633.ts | 13 -------------
 .../order/src/migrations/Migration20251210112924.ts |  9 +++++++++
 packages/modules/order/src/models/order-item.ts     |  6 ------
 5 files changed, 14 insertions(+), 28 deletions(-)
 create mode 100644 .changeset/sour-papayas-relax.md
 delete mode 100644 packages/modules/order/src/migrations/Migration20251130184633.ts
 create mode 100644 packages/modules/order/src/migrations/Migration20251210112924.ts

diff --git a/.changeset/sour-papayas-relax.md b/.changeset/sour-papayas-relax.md
new file mode 100644
index 0000000000..317fb25a47
--- /dev/null
+++ b/.changeset/sour-papayas-relax.md
@@ -0,0 +1,5 @@
+---
+"@medusajs/order": patch
+---
+
+chore(order): Remove unique index on item_id:version for order_item
diff --git a/packages/modules/order/src/migrations/.snapshot-medusa-order.json b/packages/modules/order/src/migrations/.snapshot-medusa-order.json
index 6cf6e121e9..c174cf53b5 100644
--- a/packages/modules/order/src/migrations/.snapshot-medusa-order.json
+++ b/packages/modules/order/src/migrations/.snapshot-medusa-order.json
@@ -2005,15 +2005,6 @@
           "unique": false,
           "expression": "CREATE INDEX IF NOT EXISTS \"IDX_order_item_deleted_at\" ON \"order_item\" (\"deleted_at\") WHERE deleted_at IS NOT NULL"
         },
-        {
-          "keyName": "IDX_unique_order_item_version_item_id",
-          "columnNames": [],
-          "composite": false,
-          "constraint": false,
-          "primary": false,
-          "unique": false,
-          "expression": "CREATE UNIQUE INDEX IF NOT EXISTS \"IDX_unique_order_item_version_item_id\" ON \"order_item\" (\"version\", \"item_id\") WHERE deleted_at IS NULL"
-        },
         {
           "keyName": "order_item_pkey",
           "columnNames": [
diff --git a/packages/modules/order/src/migrations/Migration20251130184633.ts b/packages/modules/order/src/migrations/Migration20251130184633.ts
deleted file mode 100644
index a5cb4074a1..0000000000
--- a/packages/modules/order/src/migrations/Migration20251130184633.ts
+++ /dev/null
@@ -1,13 +0,0 @@
-import { Migration } from '@mikro-orm/migrations';
-
-export class Migration20251130184633 extends Migration {
-
-  override async up(): Promise<void> {
-    this.addSql(`CREATE UNIQUE INDEX IF NOT EXISTS "IDX_unique_order_item_version_item_id" ON "order_item" ("version", "item_id") WHERE deleted_at IS NULL;`);
-  }
-
-  override async down(): Promise<void> {
-    this.addSql(`drop index if exists "IDX_unique_order_item_version_item_id";`);
-  }
-
-}
diff --git a/packages/modules/order/src/migrations/Migration20251210112924.ts b/packages/modules/order/src/migrations/Migration20251210112924.ts
new file mode 100644
index 0000000000..5f968dccdf
--- /dev/null
+++ b/packages/modules/order/src/migrations/Migration20251210112924.ts
@@ -0,0 +1,9 @@
+import { Migration } from "@mikro-orm/migrations"
+
+export class Migration20251210112924 extends Migration {
+  override async up(): Promise<void> {
+    this.addSql(`drop index if exists "IDX_unique_order_item_version_item_id";`)
+  }
+
+  override async down(): Promise<void> {}
+}
diff --git a/packages/modules/order/src/models/order-item.ts b/packages/modules/order/src/models/order-item.ts
index f16ff1bd2b..753622204f 100644
--- a/packages/modules/order/src/models/order-item.ts
+++ b/packages/modules/order/src/models/order-item.ts
@@ -51,12 +51,6 @@ const _OrderItem = model
       unique: false,
       where: "deleted_at IS NOT NULL",
     },
-    {
-      name: "IDX_unique_order_item_version_item_id",
-      on: ["version", "item_id"],
-      unique: true,
-      where: "deleted_at IS NULL",
-    },
   ])
 
 export const OrderItem = _OrderItem