* Change the lock type of Catalog lock Implement a QueryableReentrantLock to see which thread held the lock. * Key in empty version has no min/max value It should be ignored to reconstruct min/max statistics upon restart.
* Change the lock type of Catalog lock Implement a QueryableReentrantLock to see which thread held the lock. * Key in empty version has no min/max value It should be ignored to reconstruct min/max statistics upon restart.