Perhaps it was retaliation for Larry’s comments about Amazon in this interview https://m.youtube.com/watch?v=xrzMYL901AQ
If you're using any advanced features, migrating to anything else is going to be a risk-ridden project. Same goes for any other product, of course.
PG does 99% of what Oracle does. If you have one of the 1% cases, that will be a remarkable circumstance.
Always test a move from Oracle to PG, see how it performs.
With that said... Makes me wonder how many (if any) companies are moving opposite direction that Oracle survives and doing so nicely.
Perhaps it was retaliation for Larry’s comments about Amazon in this interview https://m.youtube.com/watch?v=xrzMYL901AQ