Csvreader skip columns?

I see people asking for it? Is it included or is there a reason its bad practice? I must sound like a broken record

So I ended up just doing it. Hopefully it wont bite me in the butt later.

I copied csvrecordreader, add an int skipColumns argument and change code here

for(int var6 = skipColumns; var6 < var5; ++var6) {
    String s = var4[var6];
    ret.add(new Text(s));

same with csvsequencerecordreader

    for (int i = skipNumColumns; i < split.length; i++) {
        list.add(new Text(split[i]));