[ARROW-3904] [C++/Python] Validate scale and precision of decimal128 type

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.14.0
• Component/s: C++, Python
• External issue URL: https://github.com/apache/arrow/issues/20518
• Assignee: Antoine Pitrou
• Reporter: Krisztian Szucs
• Created: 29/Nov/18 11:57
• Updated: 11/Jan/23 07:30
• Resolved: 11/Apr/19 16:33

Description

Do We have a specification for it?
Currently I can create `pa.decimal128(-2147483648, 2147483647)`, which seems wrong.

References:

• https://docs.microsoft.com/en-us/sql/t-sql/data-types/precision-scale-and-length-transact-sql?view=sql-server-2017
• https://docs.oracle.com/cd/B28359_01/server.111/b28318/datatype.htm#CNCPT1832

Issue Links

• is superceded by: ARROW-4563 [Python] pa.decimal128 should validate inputs