private CFMetaData findIndexedCF() throws InvalidRequestException
{
KSMetaData ksm = Schema.instance.getKSMetaData(keyspace());
if (ksm == null)
throw new KeyspaceNotDefinedException("Keyspace " + keyspace() + " does not exist");
for (CFMetaData cfm : ksm.cfMetaData().values())
{
if (findIndexedColumn(cfm) != null)
return cfm;
}