Hi, I've made a quick check, and the results are as follows: 1) The test was enabled recently (2020-10-20) in https://github.com/apache/calcite/commit/b5a761e559ca1c1c914e388df4c6a0958dc17fc8 2) One of the recent changes that do significantly impact the performance of the test is https://github.com/apache/calcite/pull/2222 3) It is sad we commit performance-related fixes without taking performance into consideration :-(
Do you think you could look into 2222 again and check if the slowdown was expected? Do you think you could improve 2222? Do you think we should revert 2222? Vladimir
