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  1. Apache Arrow
  2. ARROW-11704

[R] Wire up dplyr::mutate() for datasets

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Details

    • New Feature
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 4.0.0
    • R

    Description

      https://github.com/apache/arrow/pull/9532/files#diff-621536af77a522e4dd62ede27eba1da5ab533dc6565140c498f86824b25b8cb3R209:

        /// \brief Set expressions which will be evaluated to produce the materialized columns.
        ///
        /// Columns which are not referenced may not be loaded from disk.
        ///
        /// \param[in] exprs expressions to evaluate to produce columns.
        /// \param[in] names list of names for the resulting columns.
        ///
        /// \return Failure if any referenced column does not exists in the dataset's
        ///         Schema.
        Status Project(std::vector<Expression> exprs, std::vector<std::string> names);
      

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              npr Neal Richardson
              npr Neal Richardson
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