Cosette
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Do you have document on how to use Cosette with Calcite RelNode in Java?
The process of converting from Calcite RelNode to xxx.cos file is done manually. The process is documented at https://github.com/uwdb/Cosette/blob/master/examples/calcite/calcite_test.md.
Processed cases are stored in https://github.com/uwdb/Cosette/blob/master/examples/calcite/calcite_tests.json.
These processed cases are then later converted to xxx.cos file using the script https://github.com/uwdb/Cosette/blob/master/gen_cos_files.py.
Let me know if you have any other questions.