You can use the rs_session_setting function with the create function string command to set the values for Sybase IQ parameters for the duration of the connection to the Sybase IQ replicate database. For example, you can set parameter values to optimize performance.
See Replication Server Heterogeneous Replication Guide > Sybase IQ as Replicate Data Server > Sybase IQ Replicate Database Configuration > Replication Server Installation > Setting Sybase IQ Database Options.