Adding partition to already partitioned table by not touching existing partition data

Question

I want to add new partitions to already partitioned table, this is straight forward if we use REORGANIZE as it's answered here , but in my case, I have huge data in p_max partition which is taking forever to REORGANIZE.

So, I want to add new partitions to the already partitioned table without REORGANIZING the current p_max partition so that new partitions get added instantly.

Answer 1

Simple: always have p_max empty. I like to call it future . Then, just before you need p_3 , split future into p_3 and future . With no data in that partition, it is fast.

Details: http://mysql.rjweb.org/doc.php/partitionmaint#high_level_view_of_the_code

The "Why": http://mysql.rjweb.org/doc.php/partitionmaint#why _

(Both are in the same treatise on MySQL Partitioning.)