Record size greater than 64k

ERROR 1118 (42000): Row size too large. The maximum row size for the used table
type, not counting BLOBs, is 65535. This includes storage overhead, check the ma
nual. You have to change some columns to TEXT or BLOBs

I don't want use blobs for long varbinary fields because there is possibility to index by them. The user in their CMS has possibility to "alter table add column" to configure their database. The length exceeded today 65535 and system is blocked. I retested the system on Windows. I don;t know what error is issued on production version.

This bug probably by compatibility is present also in MariaDB.