JuliaData / JuliaData/TableOperations.jl
select for renaming columns
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- Dominant language
- Julia
- Stars
- 48
- Forks
- 8
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Description
Hello,
following discussion https://gitlab.com/ExpandingMan/Parquet2.jl/-/issues/46 I wonder if select couldn't provide an "alias SQL like" mechanism for renaming columns.
What about something like
ds |> TableOperations.select(:time => :timestamp, :open, :high, :low, :close, :volume) |> TimeArray
Kind regards
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the existing select entry point and the linked Parquet2.jl issue 46 to understand the proposed alias syntax and its constraints. Trace how selected column names flow through the Tables.jl interface, then define the supported renaming behavior and verify that the shown pipeline preserves the requested names.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- julia
- Domain
- data
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 28/100