In the base code of ./account_banking_payment_export/model/account_move_line.py

is a functional field delcared 

class account_move_line(orm.Model):

    _inherit = 'account.move.line'



    def amount_to_pay(self, cr, uid, ids, name, arg=None, context=None):

        """ Return the amount still to pay regarding all the payemnt orders

        (excepting cancelled orders)"""

        if not ids:

            return {}

        cr.execute("""SELECT ml.id,

                    CASE WHEN ml.amount_currency < 0

                        THEN - ml.amount_currency

                        ELSE ml.credit

                    END -

                    (SELECT coalesce(sum(amount_currency),0)

                        FROM payment_line pl

                            INNER JOIN payment_order po

                                ON (pl.order_id = po.id)

                        WHERE move_line_id = ml.id

                        AND po.state != 'cancel') AS amount

                    FROM account_move_line ml

                    WHERE id IN %s""", (tuple(ids),))

        r = dict(cr.fetchall())

        return r

        'amount_to_pay': fields.function(amount_to_pay,type='float', string='Amount to pay', fnct_search=_to_pay_search),

when i use this field in a loop...

for line in move_obj.browse(cr, uid, move_ids, context):
                if line.amount_to_pay > 0.00 

The moment it read the if line.amount_to_pay > 0.00 it generates a huge query on the postgres DB, i believe for all the account_move_line.

I was expecting just a query for one line, but this is not so...

Has anybody had the same experience with such an issue?