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Weston Pace commented on ARROW-14098: ------------------------------------- There are a fair number of differences between this and DATEDIFF. DATEDIFF returns the number of boundaries crossed. For example, DATEDIFF(2021-01-02T00:00:00, 2021-01-01T23:59:59, DAYS) would yield "1" and this kernel yields 1 second. Other than the semantic meaning: DATEDIFF returns an integer, this returns a duration DATEDIFF requires taking the time zone into account for timestamps with time zones, this kernel would not. > [C++] subtract(time, time) -> duration kernel > --------------------------------------------- > > Key: ARROW-14098 > URL: https://issues.apache.org/jira/browse/ARROW-14098 > Project: Apache Arrow > Issue Type: Sub-task > Components: C++ > Reporter: Phillip Cloud > Priority: Major > > Issue to track subtraction of times. -- This message was sent by Atlassian Jira (v8.3.4#803005)