I'm using the lastest JayBird driver and saw that ResultSetMeta does
not return a column as readonly when it comes from a computed field.

In Borland's employee demo database, you have a 'FULL_NAME' computed
field which is a concatenation of first and last names. The
resultset does noy mark it as readonly but, when you try to submit
an update, it fails with an exception.

Phil.