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

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

Dragoș Moldovan-Grünfeld created ARROW-14842:
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             Summary: [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


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).



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