@Override public String toString() {
    return factory.preparedStatement.getQuery()
      .replace("(?,?)", "(" + input.getKey() + "," + input.getValue() + ")");
  }
Cassandra v1 has deprecated support for indexTtl.
zipkin-storage/cassandra/src/main/java/zipkin2/storage/cassandra/internal/call/InsertEntry.java