issues for PDO / PDO-like DB wrappers

[phil]

DB_fetch_row - always expects a non-associative array ... I think so the index is always 0,1,2...etc
DB_fetch_array - always returns an associative array with nice names as indexes we are trying to move to this function in 99% of places.
Seems like a show stopper for PDO if it is not capable of reproducing basic functions that are necessary in webERP code - not sure it is worth a re-write to be PDO capable?