Hi all, I'm focusing on query optimization recently, and find it very challenging. I'm very interested in Calcite's query optimizer, since it's open source and has been integrated in Hive, Drill, etc.
But as a beginner (with basic knowledge in databases), I find it hard to follow. Are there any design documents or papers which may help me understand the main procedures and data structures in Calcite? Thank you. ________________________________ best regards, -zhenhua
