1 files changed, 22 insertions, 0 deletions
diff --git a/db/migrate/20240117055908_drop_unique_index_to_system_note_metadata_on_id_convert_to_bigint.rb b/db/migrate/20240117055908_drop_unique_index_to_system_note_metadata_on_id_convert_to_bigint.rb
new file mode 100644
index 00000000000..cdeafa4b713
--- /dev/null
+++ b/db/migrate/20240117055908_drop_unique_index_to_system_note_metadata_on_id_convert_to_bigint.rb
@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+class DropUniqueIndexToSystemNoteMetadataOnIdConvertToBigint < Gitlab::Database::Migration[2.2]
+  disable_ddl_transaction!
+
+  milestone '16.9'
+
+  TABLE_NAME = :system_note_metadata
+  INDEX_NAME = 'index_system_note_metadata_pkey_on_id_convert_to_bigint'
+
+  def up
+    return if Gitlab.com?
+
+    remove_concurrent_index_by_name TABLE_NAME, INDEX_NAME
+  end
+
+  def down
+    return if Gitlab.com?
+
+    add_concurrent_index TABLE_NAME, :id_convert_to_bigint, unique: true, name: INDEX_NAME
+  end
+end