Selecting columns in dplyr::distinct()

tidyverse
1

I am trying to pass a character variable called "col" to dplyr::distinct() to designate the column for it to use to determine distinctness. What is the correct syntax? Each of the following are problematic:

df <- df |> distinct(col, .keep_all = T) ...
... reports an error that col is not a column in df (as expected)

df <- df |> distinct(pick(col), .keep_all = T) ...
... warns that "using an external vector in selections was deprecated in tidyselect 1.1.0. Please use all_of() or any_of instead.

df <- df |> distinct(all_of(col), .keep_all = T) ...
... warns that "using all_of() outside of a selecting function was deprecated in tidyselect 1.2.0."

2

I agree that the pick() and all_of()'s are annoying...
what you can try that I think will work

df |> distinct(!!sym(col))

df |> distinct(.data[[col]])
3

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