Weston Pace created ARROW-15581:
-----------------------------------
Summary: [C++] Add proper support for Substrait intervals
Key: ARROW-15581
URL: https://issues.apache.org/jira/browse/ARROW-15581
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Weston Pace
The Arrow Substrait consumer does not currently support functions on intervals.
This is because the Substrait deserializer currently asserts that all
information must be round trippable and it errs on the side of rejecting plans
before allowing a plan that could be correct consumed but not round tripped.
This affects interval types because, for example, the substrait interval 1 year
12 months would be converted to the substrait interval 2 years after a round
trip.
To resolve this the current implementation encodes intervals as fixed length
lists of numbers which we cannot do any kind of datetime math on.
--
This message was sent by Atlassian Jira
(v8.20.1#820001)
