[GRASS5] sqlite fails for ADD COLUMN

Hi,

I use GRASS with sqlite driver and cannot add columns to attribute tables:

echo "ALTER TABLE ammcom ADD COLUMN area double" | db.execute

DBMI-SQLite driver error:
Error in sqlite3_prepare():
near "ADD": syntax error
ERROR: Error while executing: "ALTER TABLE map ADD COLUMN area double

it works with dbf and is also supported by sqlite3, as far as I know. Is it
possible to change/add this?

  thanks
     Otto