I haven't had a chance to try hstore yet - I've only recently got myself a decent dev environment where I could play around with installing that kind of thing. It's certainly something I should look into, as it's likely to have plenty of advantages over my cobbled together array system.

As for production use, I did persuade my colleagues to use it for some data like lists of resorts to use on a new Spanish website, and apart from a couple of inconsistencies with the way different Postgres versions handled the custom operators, which I need to look into, it seems to have worked out quite well. (I think the problem was with the wrong version of || being called, worked around by defining ||| instead...)

Rowan

Anyone tried it in production?

Werner