FatLittle opened a new pull request #1991: URL: https://github.com/apache/calcite/pull/1991
related to https://github.com/apache/calcite/pull/1950 1. Introduce Top-Down rule applying strategy in VolcanoPlanner 2. Implement tasks and state transformations according to the design of Columnbia 3. Introduce a LowerBoundCost metadata to compute lower bound and used for pruning 4. Using a flag to control whether to use new strategy or not ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
