Yes, that’s right. In Citus 8, the coordinator node would run stored procedures. Citus 9.x introduced changes to push down stored procedures to worker nodes. S

Yes, that’s right. In Citus 8, the coordinator node would run stored procedures. Citus 9.x introduced changes to push down stored procedures to worker nodes. So, if your stored procedures mostly touches local shards, Citus 9 significantly cuts down network traffic.