Updates without dropping columns.

[James Johnson]

I would like to be able to modify a schema and not have it drop columns that no longer exists.  Is this possible?

[Wiktor Ihárosi]

i did this...

$sql = $schema->ParseSchema($this->schemaFile);
foreach ($sql as $key => $value) {
    if (strstr($value, "DROP")) {
        unset($sql[$key]);
    }
}
$result = $schema->ExecuteSchema($sql);

lame, but works :)