UNCSEG_KEYCOMPRESS YES | NO
Used to force indexes that contain a key segment using a Unicode key segment mode to be created with c-tree leading and padding key compression.
By default, this option is OFF. To enable this option, add the following to ctsrvr.cfg:
This option can also be enabled or disabled at runtime using the ctadmn utility's option to change a server configuration option value or programmatically calling ctSETCFG().