In our Sharepoint 2019 setup, despite files being deleted from both recycle bins in sharepoint, space is not freed in our databases. We discovered that there is another level of recycle bin in the database, and that the stored procedure that should delete thoses items can't execute: one date in the procedure is set to 31-12-9999, which is not interpreted as a date value. Other default dates in other stored procedures are set to 01-01-9999 which works for any language. So we "patch" sharepoint 2019 by changing this date in every database created by sharepoint...