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https://issues.apache.org/jira/browse/ARROW-17495?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17584136#comment-17584136
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Nicola Crane commented on ARROW-17495:
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[~dragosmg] I was trying to look into this, and saw this in the docs for the
{{update_cache}} param for {{register_binding()}}:
"The reason why .cache$functions is needed in addition to nse_funcs for
non-aggregate functions could be revisited...it is currently used as the data
mask in mutate, filter, and aggregate (but not summarise) because the data mask
has to be a list."
Given that [~paleolimbot] made the PR for the function registry stuff, he might
be the person to ask about this?
> [R] arrow_eval: do we need both use_funcs and .cache$functions?
> ---------------------------------------------------------------
>
> Key: ARROW-17495
> URL: https://issues.apache.org/jira/browse/ARROW-17495
> Project: Apache Arrow
> Issue Type: Improvement
> Components: R
> Affects Versions: 9.0.0
> Reporter: Dragoș Moldovan-Grünfeld
> Priority: Major
>
> Currently we have 2 copies of the same information, once in {{nse_funcs}} and
> once in {{{}.cache$functions{}}}. I wasn't able to figure out the reason for
> this. Maybe I am missing something or maybe this is just legacy code that we
> can update.
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