I selected two primary keys in table. See the pictures.
Anna, just one column can be key column, to define a composite primary key you need to define all columns as parent key and do not define a key column for that table.
I think is worthy to open a bug (or change the subject on this) to add a validation to forbid multiple key columns.
I think that better change the subject on this.
hi , maybe we create a wiki page to note all modify like this one.
it help people can verify old database and correct it follow that change
example this one, can add a note and a query to find out table have more than one column is key
Hi , yes, a wiki collecting potential inconsistencies sounds good.
However, this specific case is unlikely in a prod database, the data problem would have been discovered early on any test. But if you want to document it that sounds fine.