PRQL (higher-level abstraction language for SQL)
https://prql-lang.org/
HN Article, PRQL:
https://news.ycombinator.com/item?id=36866861
Google search, site: GitHub, "SQL Transpiler":
https://www.google.com/search?q=site%3Agithub.com+%22SQL+Tra...
GitHub general list of open-source Transpilers:
https://github.com/topics/transpiler