Thanks for the reply, Sergey.
Image/long text fields are not sortable.
That's too bad since, in our PostGres environment, nearly all non-numeric columns are stored as text columns. I know this is a faux-pas in other databases--with varchar being the preferred choice for performance reasons--but it makes little or no difference performance-wise in Postgres (according to the docs and our own emprical measurements), and it's definitely convenient not to have to specify a max length. In any case, it's already done...not something we can easily change.
So this means we wouldn't be able to sort on our non-numeric fields--unless we have a work-around here.
In Visual Editor you can replace a clickable field header with a simple label. This will turn off the sorting.
I was aware of this alternative, but I'm hesitant to use it. Whenever I've worked with code-generation packages in the past, one maxim that I've tried to stick to is "don't touch the generated code unless you absolutely have to." Because, as soon as you modify it, you can't regnerate without losing your mods. I think one of the hallmarks of a good code generator is the use of sufficient user-configurable settings, events, and the like to minimize or eliminate the need to touch the generator's output.
Although I'm quite impressed with phpRunner's features overall, I'm afraid this is a show-stopper for us. We will continue to monitor the product's future versions.
Ken