This is not new technology. Free APIs exist. It's like 4 lines of code. Look:
Postgres - 43 788 QPS; Mean: 29.407 ms, Percentile 99: 470.449 ms
，推荐阅读新收录的资料获取更多信息
Because of this, you shouldn't go into research with the objective of winning a best paper award.
Space Complexity: Also yes