mcabbott / mcabbott/AxisKeys.jl

sortkeys() changes key container type

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Dominant language
Julia
Stars
154
Forks
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PR merge metrics
No merged PRs in 30d

Description

I think it is reasonable to expect that sorting keys should not change the key container type. This is not currently the case:

using AxisKeys, UniqueVectors

a = wrapdims(rand(2), UniqueVector, x=1:2)

println(typeof(axiskeys(a,:x)))

a = sortkeys(a)

println(typeof(axiskeys(a,:x)))

Produces:

UniqueVector{Int64}
Array{Int64,1}

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Research direction

Start by locating the sortkeys() entry point in AxisKeys.jl and run the reproduction from the issue using a UniqueVector axis key. Trace how the sorted key is constructed, then verify that sorting preserves the UniqueVector container type rather than returning an Array.

Written by the indexing model from the issue text.

Assessment

Tech stack
julia
Domain
data
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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