Comments - Migrating from 'innodb' checksum to 'crc32' checksum
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Thank you for the explanation!
I agree, checksum is only used as blocks are modified.
I have noticed is if any block in .ibd tables that were not modified over time after checksum change(innodb -> crc32), and when these .ibd tables used for restoring, checksum check fails against crc32. During the above scenario what is recommended? rewrite the blocks that were not updated with new checksum algorithm? so it would pass the checksum check during restore process?