@Override protected CompletionStage<AsyncResultSet> newCompletionStage() {
    return factory.session.executeAsync(factory.preparedStatement.boundStatementBuilder()
      .setString(0, input.getKey())
      .setString(1, input.getValue()).build());
  }
Cassandra v1 has deprecated support for indexTtl.
zipkin-storage/cassandra/src/main/java/zipkin2/storage/cassandra/internal/call/InsertEntry.java