* test: add fuzz tests for migrate metric regions
* test: insert values before migrating metric region
* feat: correct table num
* chore: apply suggestions from CR
* fix(fuzz): adapt for new partition rules
* feat: implement naive fuzz test for region migration
* chore(ci): add ci cfg
* chore: apply suggestions from CR
* chore: apply suggestions from CR
* test: add e2e test for region failover
* chore: add ci cfg
* chore: reduce parallelism to 8
* fix(ci): enable region failure
* chore: set sqlx LogLevel to Off
* refactor: move help functions to utils
* feat(fuzz): add validator for inserted rows
* fix: compatibility with mysql types
* feat(fuzz): add datetime and date type in mysql for row validator
* refactor: let upper caller control whether to omit column list
* feat(fuzz): add insert logical table target
* ci: add fuzz_insert_logical_table ci cfg
* feat(fuzz): add create logical table target
* fix: drop physical table after fuzz test
* fix: remove backticks of table name in with clause
* fix: create physical and logical table properly
* chore: update comments
* chore(ci): add fuzz_create_logical_table ci cfg
* fix: create one logical table once a time
* fix: avoid possible duplicate table and column name
* feat: use hard-code physical table
* chore: remove useless phantom
* refactor: create logical table with struct initialization
* chore: suggested changes and corresponding test changes
* chore: clean up
* feat: add create table fuzz test
* chore: add ci cfg for fuzz tests
* refactor: remove redundant nightly config
* chore: run fuzz test in debug mode
* chore: use ubuntu-latest
* fix: close connection
* chore: add cache in fuzz test ci
* chore: apply suggestion from CR
* chore: apply suggestion from CR
* chore: refactor the fuzz test action
* feat(tests-fuzz): add CreateTableExprGenerator
* refactor: move Column to root of ir mod
* feat: add AlterTableExprGenerator
* feat: add Serialize and Deserialize derive
* chore: refactor the AlterExprGenerator