Since a few days Akonadi 22.08-1 fills ~/.local/share/akonadi/db_data/mysql.err with the error message
Incorrect definition of table mysql.column_stats: expected column ‘histogram’ at position 10 to have type longblob, found type varbinary(255)
How to fix that problem ?
I assume there was some change of the akonadi database format and I missed the conversion of the old database to the new format due to some unknown reason