[zen_boy]

Care to expand how? Curious as a Rails developer myself.

[netghost]

If you just want some background, I actually gave a talk about hstore, arrays, and FTS in postgres for rails devs a few months ago.

Links to the talk, slides, sample code, and some follow up articles: http://monkeyandcrow.com/blog/postgres_railsconf2013/

[dalyons]

I was in the audience! It was a great session - you're a funny guy, explained the concepts well, and there was some really interesting real(or alternate :p) world use-cases for all this stuff.

[zen_boy]

Great stuff! Seems like the store_accessor works with the :json column type out of the box as well.

Throw in a JSON schema validator and we have full-blown validations for :hstore and :json!