Comment by YoAdrian

In 16 years, this has only happened once. I had an application running on 64-bit MySQL. We had a legacy app running on 32-bit Oracle. New CTO came along and made me switch the new app to Oracle since he didn't want to support two DB platforms. Didn't have ORM or Stored Procs (MySQL didn't support SP at the time). The SQL wasn't that complicated, but it took me a week to convert the whole thing. Downgrading to 32-bit DB slowed it down considerably. I left the company once the update went live.