1 files changed, 34 insertions, 0 deletions
diff --git a/db/post_migrate/20230516032545_add_unique_notes_id_convert_to_bigint_for_gitlab_com.rb b/db/post_migrate/20230516032545_add_unique_notes_id_convert_to_bigint_for_gitlab_com.rb
new file mode 100644
index 00000000000..330bf23434d
--- /dev/null
+++ b/db/post_migrate/20230516032545_add_unique_notes_id_convert_to_bigint_for_gitlab_com.rb
@@ -0,0 +1,34 @@
+# frozen_string_literal: true
+
+class AddUniqueNotesIdConvertToBigintForGitlabCom < Gitlab::Database::Migration[2.1]
+  include Gitlab::Database::MigrationHelpers::ConvertToBigint
+
+  disable_ddl_transaction!
+
+  TABLE_NAME = :notes
+  INDEX_NAME = :index_notes_on_id_convert_to_bigint
+
+  def up
+    return unless should_run?
+
+    # This was created async for GitLab.com with
+    # https://gitlab.com/gitlab-org/gitlab/-/merge_requests/119913
+    # and will replace the existing PK index when we swap the integer and bigint columns in
+    # https://gitlab.com/gitlab-org/gitlab/-/merge_requests/119705
+    add_concurrent_index TABLE_NAME, :id_convert_to_bigint,
+      unique: true,
+      name: INDEX_NAME
+  end
+
+  def down
+    return unless should_run?
+
+    remove_concurrent_index_by_name(TABLE_NAME, INDEX_NAME)
+  end
+
+  private
+
+  def should_run?
+    com_or_dev_or_test_but_not_jh?
+  end
+end