Sybase IQ version 15.3 includes changes to system procedures.
The sp_iqcontext system procedure column name ConnOrCursor has changed to ThreadType.
Reference: Building Blocks, Tables, and Procedures > System Procedures > System Stored Procedures > sp_iqcontext Procedure
In Sybase IQ 15.3, running this procedure from the coordinator returns a row for every node. In earlier versions, it returned a row for the current node only on a secondary node.
Using Sybase IQ Multiplex > Multiplex Reference > System Procedures > sp_iqmpxinfo Procedure