It does make sense. It gets you a non-repeating sample of the table.
It is probably not very efficient, but semantically it is fairly straightforward. In fact I thought that "hang" was going to mean "took so long I thought it was hung" but that turned out not be the issue here.
It is probably not very efficient, but semantically it is fairly straightforward. In fact I thought that "hang" was going to mean "took so long I thought it was hung" but that turned out not be the issue here.