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https://issues.apache.org/jira/browse/ARROW-3702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16859867#comment-16859867
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Romain François commented on ARROW-3702:
----------------------------------------
{code:r}
rnorm(10)
#> [1] 0.13506176 0.73326807 0.38532627 -1.06606464 -1.29157473
#> [6] 0.52508708 2.16052209 -0.07074236 -2.40163018 -1.21973122
rnorm(10)
#> [1] 0.6669008 0.6079255 1.5880609 -1.0418770 -0.2569900 0.1472028
#> [7] 0.1147444 1.2567987 -1.5699940 -0.2741158
{code}
Created on 2019-06-10 by the [reprex package|https://reprex.tidyverse.org]
(v0.3.0.9000)
> [R] POSIXct mapped to DateType not TimestampType?
> -------------------------------------------------
>
> Key: ARROW-3702
> URL: https://issues.apache.org/jira/browse/ARROW-3702
> Project: Apache Arrow
> Issue Type: Improvement
> Components: R
> Reporter: Javier Luraschi
> Priority: Major
> Fix For: 0.14.0
>
>
> Why was POSIXct mapped to
> [DataType|https://arrow.apache.org/docs/cpp/classarrow_1_1_date_type.html#a6aea1fcfd9f998e8fa50f5ae62dbd7e6]
> not
> [TimestampType|https://arrow.apache.org/docs/cpp/classarrow_1_1_timestamp_type.html#a88e0ba47b82571b3fc3798b6c099499b]?
> What are the PRO/CONs from each approach?
> This is mostly to interoperate with Spark which choose to map POSIXct to
> Timestamps since in Spark, not Arrow, dates do not have a time component.
> There is a way to make this work in Spark with POSIXct mapped to DateType by
> mapping DateType to timestamps, so mostly looking to understand tradeoffs.
> One particular question, timestamps in arrow seem to support timezones,
> wouldn't it make more sense to map POSIXct to timestamps?
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