From 250b263e587cd0bac0a9ce9d8f6226a9677507ed Mon Sep 17 00:00:00 2001
From: Isaac Hill <71404865+isaachilly@users.noreply.github.com>
Date: Thu, 5 Mar 2026 17:34:18 +0100
Subject: [PATCH 1/2] [O2B-1539] Add index on QC flags to help GAQ summary
 computation

Add a composite index on quality_control_flags(run_number, detector_id) that proved to reduce computation time for GAQ summary by 50% on local.
---
 .../20260305110000-add-qcf-run-detector-index.js  | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 lib/database/migrations/v1/20260305110000-add-qcf-run-detector-index.js

diff --git a/lib/database/migrations/v1/20260305110000-add-qcf-run-detector-index.js b/lib/database/migrations/v1/20260305110000-add-qcf-run-detector-index.js
new file mode 100644
index 0000000000..d0c86d8c7d
--- /dev/null
+++ b/lib/database/migrations/v1/20260305110000-add-qcf-run-detector-index.js
@@ -0,0 +1,15 @@
+'use strict';
+
+/** @type {import('sequelize-cli').Migration} */
+module.exports = {
+    up: async (queryInterface) => queryInterface.sequelize.transaction(async (transaction) => {
+        await queryInterface.addIndex('quality_control_flags', {
+            name: 'quality_control_flags_run_detector_idx',
+            fields: ['run_number', 'detector_id'],
+        }, { transaction });
+    }),
+
+    down: async (queryInterface) => queryInterface.sequelize.transaction(async (transaction) => {
+        await queryInterface.removeIndex('quality_control_flags', 'quality_control_flags_run_detector_idx', { transaction });
+    }),
+};

From 7861dfbfc2a0763e4d1baecdefd66ddbc917e6a8 Mon Sep 17 00:00:00 2001
From: Isaac Hill <71404865+isaachilly@users.noreply.github.com>
Date: Fri, 6 Mar 2026 10:27:14 +0100
Subject: [PATCH 2/2] [O2B-1539] Add GPLv3 license header

Add missing CERN/ALICE GPLv3 license header to migration file.
---
 .../v1/20260305110000-add-qcf-run-detector-index.js | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/lib/database/migrations/v1/20260305110000-add-qcf-run-detector-index.js b/lib/database/migrations/v1/20260305110000-add-qcf-run-detector-index.js
index d0c86d8c7d..4c04e5920e 100644
--- a/lib/database/migrations/v1/20260305110000-add-qcf-run-detector-index.js
+++ b/lib/database/migrations/v1/20260305110000-add-qcf-run-detector-index.js
@@ -1,3 +1,16 @@
+/*
+ *  @license
+ *  Copyright CERN and copyright holders of ALICE O2. This software is
+ *  distributed under the terms of the GNU General Public License v3 (GPL
+ *  Version 3), copied verbatim in the file "COPYING".
+ *
+ *  See http://alice-o2.web.cern.ch/license for full licensing information.
+ *
+ *  In applying this license CERN does not waive the privileges and immunities
+ *  granted to it by virtue of its status as an Intergovernmental Organization
+ *  or submit itself to any jurisdiction.
+ */
+
 'use strict';
 
 /** @type {import('sequelize-cli').Migration} */