Can you update invisible columns I'm trying to update the row_start column on a table with Versioning set. The row_start column is invisible. 

UPDATE pgwebp.t_prov a
INNER JOIN pgwebp.t_prov b ON a.prov_id_a = b.prov_id 
SET a.row_start = b.system_ts_start;


Error message:

Unknown column 'a.row_start' in 'field list'
This looks like the bug/feature request MDEV-16546.

This pertains to the system versioned tables columns like row_start explicitly as normal invisible columns are currently still updateable.