This comes with several advantages and disadvantages. The advantages are:
spins = SPINS; // 多核 256，单核 0
。新收录的资料对此有专业解读
As we have seen earlier, it's not worth trying to inject relpages as the planner checks the actual file size and scales it proportationally. This limits the number of absolute rows planner might estimate. I.e. to get comparable numbers to production environment you still would have to create comparable data volume (which isn't a problem when talking about the primary use case of this feature - restoring backups).。新收录的资料是该领域的重要参考
Chris BaraniukTechnology Reporter。新收录的资料对此有专业解读