Request: A one query method to cover all of them

Hi! I really appreciate the work you have put into this library!

When automating queries it's not always possible to know if a request will be a query or an execution. Would it be possible to have one method exposed which handles any type of query? Currently, if I use `execute`, it will throw an error if the response is empty (e.g. from a select statement), and if I use `query` it will time out if I use an insert/delete/update statement. Maybe changing execute to not throw on empty but rather return undefined or null would be an option?

Thanks!

Start by reading the existing `query` and `execute` entry points and how they handle empty responses, SELECT statements, and INSERT/DELETE/UPDATE statements. Define the unified method's return and error behavior for both result-producing and empty operations, then verify that neither operation times out nor raises an error unexpectedly.

Written by the indexing model from the issue text.