Sorting the fields in a INSERT INTO statement in the same order as the SELECT statement of the query, taking into account the column aliases. Thus

INSERT INTO table
(columnA, columnB, columnC)

SELECT foo AS columnB, columnC, bar AS columnA
FROM table2

becomes
INSERT INTO table
(columnB, columnC, columnA)

SELECT foo AS columnB, columnC, bar AS columnA
FROM table2

With a few columns it's no big deal to do it manually but with 20 columns it is.
Displaying a hint if columns are missing is also welcome.