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Posted to jira@arrow.apache.org by "Neal Richardson (Jira)" <ji...@apache.org> on 2021/02/23 23:04:00 UTC
[jira] [Updated] (ARROW-11704) [R] Wire up dplyr::mutate() for
datasets
[ https://issues.apache.org/jira/browse/ARROW-11704?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Neal Richardson updated ARROW-11704:
------------------------------------
Description:
https://github.com/apache/arrow/pull/9532/files#diff-621536af77a522e4dd62ede27eba1da5ab533dc6565140c498f86824b25b8cb3R209:
{code}
/// \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);
{code}
> [R] Wire up dplyr::mutate() for datasets
> ----------------------------------------
>
> Key: ARROW-11704
> URL: https://issues.apache.org/jira/browse/ARROW-11704
> Project: Apache Arrow
> Issue Type: New Feature
> Components: R
> Reporter: Neal Richardson
> Assignee: Neal Richardson
> Priority: Major
> Fix For: 4.0.0
>
>
> https://github.com/apache/arrow/pull/9532/files#diff-621536af77a522e4dd62ede27eba1da5ab533dc6565140c498f86824b25b8cb3R209:
> {code}
> /// \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);
> {code}
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