presto-cassandra/src/main/java/io/prestosql/plugin/cassandra/CassandraClusteringPredicatesExtractor.java/CassandraClusteringPredicatesExtractor/getClusteringKeyPredicates
class CassandraClusteringPredicatesExtractor:    public String getClusteringKeyPredicates()
    {
        return clusteringPushDownResult.getDomainQuery();
    }