Allow nil values

[sparkertime]

Right now, to-hstore and from-hstore can only be called on non-nil values. It's a bit annoying to have to nil-check the value before calling the methods - what would you say to a patch to extends the *Storable types for nil?

[blakesmith]

What would nil store as? Empty string? Can the hstore value be null?

[sparkertime]

Yeah, I would think that (to-pghstore nil) -> nil. They can indeed be null.

[blakesmith]

Cool, I'd definitely take a patch for this.