Importing a MySQL dump file to a subscription's database in Subscriptions > example.com > Databases > Import fails with the following error:
ERROR 1118 (42000) at line 432: Row size too large (> 8126). Changing some columns to TEXT or BLOB may help. In current row format, BLOB prefix of 0 bytes is stored inline.
MySQL InnoDB requires database records to fit in the B-tree leaf page. See MySQL bug tracker, Bug #69336 for more details.