[jira] [Updated] (ARROW-14842) [C++] Improve precision range error messages for Decimal128Type/Decimal256Type

["Dragoș Moldovan-Grünfeld (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-14842?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dragoș Moldovan-Grünfeld updated ARROW-14842:
---------------------------------------------
    Description: 
The error message surfaces in R like so:
{code:r}
decimal(0, 2)
Error: Invalid: Decimal precision out of range: 0
{code}
and
{code:r}
decimal(100, 2)
Error: Invalid: Decimal precision out of range: 100
{code}
 
Could we improve the error message to be a bit more informative. As it is it doesn't specify what the range should be (1 to 38 for Decimal128Type, for example).

  was:
The error message surfaces in R like so:
{code:r}
decimal(0, 2)
Error: Invalid: Decimal precision out of range: 0
{code}

and

{code:r}
decimal(100, 2)
Error: Invalid: Decimal precision out of range: 100
{code}
 
This isn't very informative as it doesn't specify what the range should be (1 to 38 for Decimal128Type, for example).


> [C++] Improve precision range error messages for Decimal128Type/Decimal256Type
> ------------------------------------------------------------------------------
>
>                 Key: ARROW-14842
>                 URL: https://issues.apache.org/jira/browse/ARROW-14842
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C, R
>            Reporter: Dragoș Moldovan-Grünfeld
>            Priority: Major
>
> The error message surfaces in R like so:
> {code:r}
> decimal(0, 2)
> Error: Invalid: Decimal precision out of range: 0
> {code}
> and
> {code:r}
> decimal(100, 2)
> Error: Invalid: Decimal precision out of range: 100
> {code}
>  
> Could we improve the error message to be a bit more informative. As it is it doesn't specify what the range should be (1 to 38 for Decimal128Type, for example).



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