Bug in except for views with subviews

With no "mapcols -omit" in vlerq4, I wrote my own omitcols as follows:

ratcl::vopdef omitcols {v cols} {

   view $v colmap $cols | get @ | to remove
   view $v get @ | except $remove | get * name | to keep
   view $v colmap $keep

}

When cols contains column that has a subview, then the column doesn't end up getting omitted. So it seems that except doesn't work for rows containing a non-empty subview column.

Here's a simpler test case:

view {a b} def {1 2 1 3 2 4 3 5} | group a g | to a view $a except [view $a first 1] | dump

Output:

 a  g
 -  --
 1  #2
 2  #1
 3  #1

Summary

This is an old issue, it has indeed been fixed on Dec 3. The hash calculations were not fully implemented for views. Now in darcs.