Anonymous Monk:

Nice catches. I've never read the SQL standard, so I should've phrased it something more like "commonly used/implemented". The substr is just a bobble on my side. I'm always using substring in perl and substr in SQL, so you'd think I would be sensitized to checking that, at least.

Sigh.

Updated both nodes.

...roboticus

When your only tool is a hammer, all problems look like your thumb.