For performance reasons, VA Smalltalk uses a cache to keep track of the row schema for queries. The cache prevents VA Smalltalk from having to query the database for the schema each time a new empty table row is needed.

If the structure of the table changes while a database manager is active, the schema in the cache may differ from the actual (new) schema for the row. To prevent these inconsistencies, disconnect from your database and then reconnect following any changes to the table schema.