I'm not looking for statements which necessarily match the 250 rows requirement. If each of those lines match an entity for which additional data is then needed to be loaded by subsequent queries, you might have 250 more queries (or even more) triggered to satisfy the entity initialization.

Best would be if you could collect all SQL statements which are triggered by this search, avoiding other operations on the system at the same time. How many queries do we get in such case, still just one?