Retrieve an IEnumerable from custom table via C# api

Hello!Need to retrieve an IEnumerable@string@ of custom table's column values. I'm using CustomTableItemProvider.GetItems(@CLASSNAME@) to retrieve all rows from table. Now I need to get specific column values list.I see that there is a SelectColumnsList) property which probably can help me, but the problem is that i can't imagine how to use it, i tried to google and kentico doc search but it didn't help.Thank you in advance.