Hi, Just something interesting I noticed today.. As you've probably already seen, PostgreSQL 9.2 added support for storing JSON documents in a 'json' type field. It also adds the V8 javascript engine as a first-class procedural language. Initially I thought that you'd probably end up with a lot of tables with key metadata separated out into your int/char/etc types so you could index it.. but someone has pointed out that you can index into the json data using the v8 engine and Postgres' functional indexes. That is reasonably nifty. Currently you need to write a couple of helper functions yourself, but I suspect we'll see more of this brought into the built-in functions by 9.3. For examples, see: http://people.planetpostgresql.org/andrew/index.php?/archives/249-Using-PLV8... Cheers, Toby