Sybase IQ 15.2 no longer supports some 12.x features and objects. You must correct these items before you migrate your databases. “Addressing unsupported objects” tells you how to identify and update unsupported objects and metadata. “Correcting invalid SQL syntax” identifies syntax changes you must make before migration.
During migration, the 15.x server creates a message
file (*.iqmsg.R) as it reloads the
generated schema. This file is normally deleted as part of a cleanup
operation for successful migrations. If the migration fails during
the reload stage, cleanup does not occur, and *.iqmsg.R remains
in the unload directory. *.iqmsg.R may
contain information that can help solve your migration problems.