ON CLUSTER Support for SYSTEM FLUSH DISTRIBUTED and STOP/START DISTRIBUTED SEND

Why it matters

This feature allows users to execute flush and control commands for distributed sends across all nodes in a cluster simultaneously. It simplifies management and helps maintain consistency when working with distributed tables in a clustered environment.

How to use it

Use the ON CLUSTER <cluster_name> clause with the SYSTEM FLUSH DISTRIBUTED, SYSTEM STOP DISTRIBUTED SEND, or SYSTEM START DISTRIBUTED SEND commands to apply these operations cluster-wide. For example:

SYSTEM FLUSH DISTRIBUTED ON CLUSTER <cluster_name>