> Surely they weren't all too far invested in mysql
I think by the time Postgres sorted itself out into a more user/admin-friendly system (which is still fairly recently, really), MySQL had pretty much conquered the "quick and easy" mindshare and was deeply embedded almost everywhere.
And if you've spent millions of dollars architecting your systems such that MySQL's flaws aren't killer issues, there's very little financial benefit to switching, I guess.
I think by the time Postgres sorted itself out into a more user/admin-friendly system (which is still fairly recently, really), MySQL had pretty much conquered the "quick and easy" mindshare and was deeply embedded almost everywhere.
And if you've spent millions of dollars architecting your systems such that MySQL's flaws aren't killer issues, there's very little financial benefit to switching, I guess.