docs: public void addTTL(int ttlValue, String ttlUnit, String ttlColumn, int batchSize,
              int maxFrequency, String streamName) {
          dropTTL();
          timeToLive = new TimeToLiveVoltDB(ttlValue, ttlUnit, getColumn(findColumn(ttlColumn)),
                  batchSize, maxFrequency, streamName);
      }