Add join family without default definition
#36
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src/DataAPI.jl
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| @@ -183,4 +183,102 @@ default definition. | |||
| function unwrap end | |||
| unwrap(x) = x | |||
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| """ | |||
| innerjoin(x, y, zs...) | |||
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Two small comments:
- Here and below I would drop
zs, as other packages do not have to provide this. - I think it would be good to mention a reference (or add a description) to what a given type of join does. Ideally (if it is possible to do it relatively easily and in a generic way) - maybe also add a comment that the way key columns are determined is implementation specific and that key equality rules are also implementation specific.
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Actually I'm not sure it's very useful to provide docstrings. Packages will have to provide more specific docstrings anyway, and the default docstrings are even misleading as on may be required by some packages.
For pairwise in StatsAPI I just added a comment for the same reason. I think that makes sense since that documentation is intended at package authors rather than end users.
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I am OK to fully remove docstrings.
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I remove the docstrings and add some code comments, since it's face to developers.
Codecov Report
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## main #36 +/- ##
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Coverage 91.30% 91.30%
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Files 1 1
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Hits 21 21
Misses 2 2
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close JuliaData/Tables.jl#238
Well, I think the default definition isn't trivial to implement, so I just setup the interface functions.
I don't restrict the parameter of join key, which is the kwarg
onin DataFrames.jl, since the join key is optional in some cases of time series join.