[ARROW-11704] [R] Wire up dplyr::mutate() for datasets

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0.0
• Component/s: R
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/27564
• Assignee: Neal Richardson
• Reporter: Neal Richardson
• Created: 19/Feb/21 22:12
• Updated: 11/Jan/23 08:21
• Resolved: 05/Mar/21 22:49

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);

Issue Links

• depends upon: ARROW-11174 [C++][Dataset] Make Expressions available for projection
• depends upon: ARROW-11683 [R] Support dplyr::mutate()
• links to: GitHub Pull Request #9586