I'm curious to hear others' opinions on using a database as a message queue. One issue I have with most message brokers is that you can not perform adhoc querie

I'm curious to hear others' opinions on using a database as a message queue. One issue I have with most message brokers is that you can not perform adhoc queries or manipulations of the queue. When you've got a backlog situation, it's nice to be able to answer questions like: - how many of these queued msgs are for/from customer/partner X.