my $sms = $dbh->prepare(q{
UPDATE sms SET status = $2, cost = $3
,time = TIMESTAMP WITH TIME ZONE 'epoch' + $4 * INTERVAL '1 second'
my $sms = $dbh->prepare(q{
UPDATE sms SET status = $2, cost = $3
,time = TIMESTAMP WITH TIME ZONE 'epoch' + $4 * INTERVAL '1 second'