Reconnect to worker cluster after unexpected disconnect

Detail name	Value
Changelog Number	16876
Type	Improvement
Status	Resolved
Fix Versions	Exasol 8.22.0
Resolution Date	2023-08-29

Background

If a session is unexpectedly disconnected, the driver may automatically try to reconnect to Exasol and reestablish the session. If the session was previously moved to a worker cluster (using CONTROL MOVE SESSION) and disconnected, and the driver reconnected to Exasol, then the session was reestablished on the main cluster, not the cluster it was moved to.

Improvement

If the session was previously moved to a worker cluster (using CONTROL MOVE SESSION) and unexpectedly disconnects, and the driver reconnects to Exasol, then the session is reestablished on the previous worker cluster.