github.com statistics: remove useless copy in the MergePartitionStats2GlobalStats by hawkingrei · Pull Request #47144 · pingcap/tidb · GitHub MergePartitionStats2GlobalStatsでの不要なcopyを行わないようにしています。 executor, tests: move some test cases from `executor_test.go` to `integrationtest` by SeaRise · Pull Re…