Hi, I just did a random "Calcite" search on upwork.com and it turned out there's a research job to apply Calcite to a real project.
https://www.upwork.com/jobs/_~01e957c78cc8972025/ >Work on a 5-7 week PoC to use Apache Calcite (or other tools proposed) >to map between a Legacy and Target SQL Server data model. >The "Database Intermediary" would receive statements (CRUD) >from the client Java application and transform the statement >on the fly to the statement(s) required to update the SQL Server >database according to the Target data model Great work, everybody! PS. Feel free to apply for the project. I would consider participating provided I had more spare time. Vladimir