switch($matches[1]) {
case 1050: // create tables triggers this..
case 1060: // Duplicate column name
+ case 1061: // Duplicate key name - triggered by add index.. but could hide error. - unlikely though.
case 1054: // Unknown column -- triggered by CHANGE COLUMN - but may hide other errrors..
- case 1061: // Duplicate key name - triggered by add index.. but could hide error. - unlikely though.
$continue = 1;
break;