Citus is a fork of Postgresql and you would need to run it on it's own infrastructure. AWS Aurora Postgresql regular flavor does support some of the popular ex

Citus is a fork of Postgresql and you would need to run it on it's own infrastructure. AWS Aurora Postgresql regular flavor does support some of the popular extensions but that may not be the case with this flavor since it has some memory, image space and execution time limits that the other managed Aurora solution would not. That said, being able to keep a pool of warm database clients at the ready for unpredictable write loads looks like it would be a winner and AWS has reliably improved to add requested features.