JuliaData / JuliaData/SplitApplyCombine.jl

possible to open up types on`innerjoin`?

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Dominant language
Julia
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Description

It looks like the functions given to innerjoin need to be Union{Function, Type}, which precludes callable objects. Would it be possible to remove that restriction?

For some local code I defined (name::Symbol)(x) = getfield(x, name), so I don't have to do so many r->r.foo and can instead just do things like map(:foo, coll), etc. It doesn't work with innerjoin though.

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Research direction

Start at the innerjoin entry point and inspect how the Union{Function, Type} restriction is declared. Reproduce the issue with a callable object like the Symbol-based example, then verify that innerjoin accepts it while preserving existing behavior.

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Assessment

Tech stack
julia
Domain
data
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
42/100

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