[ARROW-2009] [Format] Support 32- and 64-bit decimals in IPC messages

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: Format
• External issue URL: https://github.com/apache/arrow/issues/17991
• Assignee: Unassigned
• Reporter: Wes McKinney
• Created: 18/Jan/18 16:36
• Updated: 11/Jan/23 07:18

Description

Some systems may wish to send 32- or 64-bit decimal values on the wire without any conversions. Computations engines using Arrow may choose to promote these to 128-bit right away on receipt, but it would be useful to be enable systems with native handling of the smaller-size types to be able to send data via Arrow streams / IPC without extra serialization