Bruce Momjian <[EMAIL PROTECTED]> writes: > Wow, you can reference different column as part of the alter column.
Yeah, the USING is actually any arbitrary expression over the old table row. (Getting that to work was a tad tricky...) So you can view this as a full-table UPDATE operation that folds in possible column type changes. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]