Data[i,j] with a ResultSet type makes a copy of Data?

[songroom]

i want to know whether Data[i,j] with a ResultSet type makes a copy of Data, the way is same as Array?
thank you!

[quinnj]

You're correct that currently doing Data[i,j] on a ResultSet makes a copy, largely due to waiting on JuliaLang/julia#9150. It wouldn't be a huge change to use ArrayViews, but I'm also not personally interested in it because 1) we can just wait until it's the default behavior in Base, most likely before the official release of 0.4 and 2) users can use ArrayViews themselves on the ResultSet without too much hassle. If you'd like to put together a PR, I wouldn't mind merging, but it's not high priority for me personally.

[songroom]

thank you very much!