Before downgrading an Adaptive Server version 15.0.2 ESD #4, set either of the following options:
Disable the Replication Agent
Set the optimization goal to allrows_mix or allrows_dss
If you downgrade the server with both options set incorrectly, you will be unable to start your downgraded server.
Workaround: Set the parameters correctly in your configuration file, and restart the server.
See Chapter 5, “Controlling Optimization,” in Performance and Tuning Series: Query Processing and Abstract Plans, for details on optimization goals.
