Julia: Heterogeneous Array literals promote row by row

[mbauman]

This surprised me:

julia> [1 "two"; 3im 4.0; 5 6//1]
3×2 Array{Any,2}:
    1           "two"
 0.0+3.0im  4.0+0.0im
   5//1       6//1

I would have expected promotion to have been completely disabled since there's a string in there. Is this the expected behavior? Is it useful? Should we change it?

[StefanKarpinski]

Agree, this seems like a bug to me.

[JeffBezanson]

Also agree, we should change it.