256 character limitation in process variable values

In an attempt to use jBPM console REST API to query the process variable values of a particular process instance, the variable value appears to get truncated when it reaches 256 characters. For example, when we make a call /history/instance/

/

"), the content within <value> appears to be limited to 256 characters.
<variable-instance-log id="1635">

—

<value>

<?xml version="1.0" encoding="UTF-8"?><RequestStatusSummary RequestLabel="Post-Action"><RequestActionName>Commission VM</RequestActionName><RequestStatusDescription>Completed</RequestStatusDescription></RequestStatusSummary>

</value>

</variable-instance-log>

Doing further research, we found that the "variableinstancelog" table itself limits the data to be only 256 characters. It would be of great help to know if there is a way to alter this size limit of 256 characters or if there is any other way to retrieve the response from REST API without the use of process variables?