Comment 1 for bug 604509

I assume/hope EXPLAIN is very very fast, so it's probably no problem to do this, other than prioritization to find time to do it. However, I'm not clear on when this is useful.

This is for a case in which we have rare timeouts, I guess? If the timeout is frequent, then presumably an EXPLAIN on the production (or maybe even staging?) database will be sufficient, I would think. So, this is only helpful for rare timeouts? ...because when you run EXPLAIN on the production database later, it doesn't seem to be a problem any more?