Added Distributed DDL Support for Cross Replication Clusters

Why it matters

This feature enables users to perform DDL statements that modify data (update/delete) or manage partitions (drop) across distributed tables in cross replication cluster setups. It solves the problem of inconsistent DDL execution across replicated clusters by coordinating these operations, thereby improving data consistency and operational efficiency.

How to use it

To use this feature, execute DDL commands like UPDATE, DELETE, or DROP PARTITION on distributed tables configured with cross replication clusters. The system will handle the distributed execution and replication of these DDL operations automatically.