Hey
This approach differs significantly from legacy InnoDB compressed tables using row_format=compressed, where both uncompressed and compressed pages can be in the buffer pool.
Any details why this is legacy? Should not be used? With a search engine I found a very old blog posting "InnoDB compression woes" from Percona.
row_format=compressed is attractive when you pay your DBaaS per GB (storage based usage). Any insides?
Lukas