Need SELECT DISTINCT

How do you implement the equivalent of SQL's "SELECT DISTINCT" with Metakit. That is if you have a column of data that looks like this:

Partnumber
0001
0001
0001
0003
0004
0006
0006

and you want to retrieve the unique values only -- such as:

Partnumber
0001
0002
0003
0004
0006

And my preference is that it be done without Regular Expressions if possible.
Can anybody help?