On Dec 8, 2010, at 6:36 AM, Phil Longstaff wrote: > Support for this already exists. There's a "versions" table which has > table-name/table-version pairs. This is loaded automatically when the file > is > opened. The backend code for each object type contains a "create tables" > routine which is called to create and/or update tables for that object type. > At > this time, if the table version is not current, it can be updated. There is > already some code for various object types which have handled some upgrades > through the 2.3.X series. >
That addresses changes to the schema (that is, how many columns are in a table, what their names and types are, which ones are keys, etc.) but not changes to how the rows are saved and retrieved in the backend. The changes I made in r19729 and r19911 were in the latter category. Regards, John Ralls _______________________________________________ gnucash-devel mailing list gnucash-devel@gnucash.org https://lists.gnucash.org/mailman/listinfo/gnucash-devel
