v input view
Meta returns the meta view of a view, describing the order and type of each of the columns in v.
Examples:set v [view {A B:I C:F} def {}]
view $v meta
view $v get @
name type subv 0 A S
name type subv 1 B I
name type subv 2 C F
name type subv
name type subv 0 A S
name type subv 1 B I
name type subv 2 C F
name type subv