1 files changed, 26 insertions, 0 deletions
diff --git a/db/migrate/20221110150942_add_project_id_lower_name_index_remove_old_index.rb b/db/migrate/20221110150942_add_project_id_lower_name_index_remove_old_index.rb
new file mode 100644
index 00000000000..dfff2f89610
--- /dev/null
+++ b/db/migrate/20221110150942_add_project_id_lower_name_index_remove_old_index.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+class AddProjectIdLowerNameIndexRemoveOldIndex < Gitlab::Database::Migration[2.0]
+  INDEX_NAME = 'index_im_timeline_event_tags_name_project_id'
+  NEW_INDEX_NAME = 'index_im_timeline_event_tags_on_lower_name_and_project_id'
+
+  disable_ddl_transaction!
+
+  def up
+    # Add new index
+    add_concurrent_index :incident_management_timeline_event_tags, 'project_id, LOWER(name)',
+      unique: true, name: NEW_INDEX_NAME
+
+    # Remove old index
+    remove_concurrent_index_by_name :incident_management_timeline_event_tags, INDEX_NAME
+  end
+
+  def down
+    # Add old index
+    add_concurrent_index :incident_management_timeline_event_tags, [:project_id, :name],
+      unique: true, name: INDEX_NAME
+
+    # Remove new index
+    remove_concurrent_index_by_name :incident_management_timeline_event_tags, NEW_INDEX_NAME
+  end
+end