In the following code, how can I @select all columns from a dataframe? Do I have to explicitly list all columns I want to @select? x = @from r in DataFramesIO begin @where !isnan(r.SHARES) @select all @collect DataFrame end

You write it as @select r, i.e. the range variable r stands for the entire row, and that is what you want to return. I would also suggest to consider using the standalone query commands with pipes, that is the primary area where I’m adding new features. The LINQ style queries that you are using wil…

@select all columns in Query.jl

General Usage

drjoke April 2, 2021, 2:41pm 3

Dropping @select would result in the follow error

LoadError: MethodError: no method matching @from(::LineNumberNode, ::Module, ::Expr)
Closest candidates are:
  @from(::LineNumberNode, ::Module, ::Expr, ::Expr)

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@select all columns in Query.jl

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