IME, the cabin is hot on almost all Asian carriers.
If it's long-haul, I usually pack a pair of gym shorts and t-shirt that I can change into or I have difficulty sleeping.
I think there was a similar thread somewhere - either for one of the other airlines or in the genreal travel forum.
I personally find that Asians are either more tolerant of heat or less tolerant of cold (I say this as an Asian American who is always warm!). Whenver I'm in Asia, I find extraordinary that people are bundled up when I'm in just a regular shirt, no jacket.
The great exception to this, of course, are the ladies I encountered in Sapporo this past winter, in a snowstorm at the Snow Festival, while they were walking in short skirts! Quite impressive!!!