The first stumbling block is the sheer amount of data. So even if some of these fields aren't perfect, maybe you've got numbers in as names and things like that,. It's probably not going to make a huge difference to performance unless youre really far out in terms of the size of that data. The other thing i want to call out on the post gres side of this is it's got a really powerful generate series function that can be used to mlock out air data quite quickly and easily.