Not implemented: deleteat!, insertat!, pop! etc.

[sairus7]

Maybe they could be added as simply as

function Base.push!(s::StructArray, vals)
    foreachfield(push!, s, vals)
    return s
end

?

Or there should be some generic code that applies all other methods for each vector, if those methods are not defined previously?

[quinnj]

Note that supporting all these mutable operations is quite cumbersome for custom array types at the moment, since you have to provide each method manually. See the WeakRefStringArray implementations here: https://github.com/JuliaData/WeakRefStrings.jl/blob/60bfb5b3c75077765073240c8d545400e365e5b4/src/WeakRefStrings.jl#L326. We also went through similar exercises for PooledArrays/CategoricalArrays. Having gone through that, we really need to refactor Base to allow custom array types to "hook" into some automatic method definitions, but for now, as I said, it's a bit cumbersome.

[sairus7]

If StructArray is just a wrapper for underlying array types, then it's just a problem for underlying custom array types, not for StructArray itself?

[piever]

Is there an exhaustive things of this mutating functions from Base that are missing? I agree with @quinnj that at the moment it is a bit annoying to implement all of them, but if it's a small number it's not the end of the world.

[sairus7]

As I understand, they are defined in # arrays section of https://github.com/JuliaLang/julia/blob/master/base/exports.jl
And implemented mostly in https://github.com/JuliaLang/julia/blob/master/base/array.jl

[robsmith11]

The following would be very useful to add. I end up implementing them for my StructArrays in many of my projects.

deleteat!
insert!
pop!
popfirst!
pushfirst!
prepend!

Is it possible to just add them for regular Arrays if other types are more difficult?