// union
if(raw.forwardIfCurrentAndNoWordNumberAfter("union")) {
select = new Select();
raw.removeSpace();
if(raw.forwardIfCurrentAndNoWordNumberAfter("all")){
raw.removeSpace();
select.setUnionDistinct(false);
}
else if(raw.forwardIfCurrentAndNoWordNumberAfter("distinct")){
raw.removeSpace();
select.setUnionDistinct(true);