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Posted to issues@arrow.apache.org by "stephhazlitt (via GitHub)" <gi...@apache.org> on 2023/09/06 17:04:25 UTC

[GitHub] [arrow] stephhazlitt opened a new issue, #37594: Convenience function for returning schema code

stephhazlitt opened a new issue, #37594:
URL: https://github.com/apache/arrow/issues/37594

   ### Describe the enhancement requested
   
   I wonder if a convenience function for returning the schema code would be handy for users? 
   
   Currently you can extract the schema with:
   
   ``` r
   library(arrow)
   #> 
   #> Attaching package: 'arrow'
   #> The following object is masked from 'package:utils':
   #> 
   #>     timestamp
   library(dplyr)
   #> 
   #> Attaching package: 'dplyr'
   #> The following objects are masked from 'package:stats':
   #> 
   #>     filter, lag
   #> The following objects are masked from 'package:base':
   #> 
   #>     intersect, setdiff, setequal, union
   
   schema(arrow_table(mtcars))
   #> Schema
   #> mpg: double
   #> cyl: double
   #> disp: double
   #> hp: double
   #> drat: double
   #> wt: double
   #> qsec: double
   #> vs: double
   #> am: double
   #> gear: double
   #> carb: double
   #> 
   #> See $metadata for additional Schema metadata
   ```
   And you can extract the schema code with:
   
   ``` r
   library(arrow)
   #> 
   #> Attaching package: 'arrow'
   #> The following object is masked from 'package:utils':
   #> 
   #>     timestamp
   library(dplyr)
   #> 
   #> Attaching package: 'dplyr'
   #> The following objects are masked from 'package:stats':
   #> 
   #>     filter, lag
   #> The following objects are masked from 'package:base':
   #> 
   #>     intersect, setdiff, setequal, union
   
   arrow_table(mtcars)$schema$code()
   #> schema(mpg = float64(), cyl = float64(), disp = float64(), hp = float64(), 
   #>     drat = float64(), wt = float64(), qsec = float64(), vs = float64(), 
   #>     am = float64(), gear = float64(), carb = float64())
   ```
   
   The schema code output is very useful for editing/altering and creating schemas, but the code is not very intuitive, especially for new users. I was thinking maybe a `schema_code()` convenience function might be useful (or some other better suited name).
   
   ### Component(s)
   
   R


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Re: [I] [R] Convenience function for returning schema code [arrow]

Posted by "thisisnic (via GitHub)" <gi...@apache.org>.
thisisnic commented on issue #37594:
URL: https://github.com/apache/arrow/issues/37594#issuecomment-1910187723

   Closing as this has now been completed


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Re: [I] [R] Convenience function for returning schema code [arrow]

Posted by "thisisnic (via GitHub)" <gi...@apache.org>.
thisisnic closed issue #37594: [R] Convenience function for returning schema code
URL: https://github.com/apache/arrow/issues/37594


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Re: [I] [R] Convenience function for returning schema code [arrow]

Posted by "orgadish (via GitHub)" <gi...@apache.org>.
orgadish commented on issue #37594:
URL: https://github.com/apache/arrow/issues/37594#issuecomment-1748383190

   This would be great! Hopefully it would also include my request from #38033.


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