rok commented on code in PR #12528:
URL: https://github.com/apache/arrow/pull/12528#discussion_r865042558
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cpp/src/arrow/compute/kernels/scalar_temporal_test.cc:
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@@ -2611,6 +2611,107 @@ TEST_F(ScalarTemporalTest, TestRoundTemporal) {
CheckScalarUnary(op, unit, times, unit, round_15_years, &round_to_15_years);
}
+TEST_F(ScalarTemporalTest, TestCeilFloorRoundTemporalAmbiguous1) {
+ auto unit = timestamp(TimeUnit::MILLI, "Asia/Tehran");
+ auto options = RoundTemporalOptions(1, CalendarUnit::HOUR,
/*some_parameter=*/true);
+ // Asia/Tehran switched from UTC+X to UTC+Y on 2022-03-31 HH:mm:ss
Review Comment:
So far I have something like this:
```
// Asia/Tehran switches from UTC+4:30 to UTC+3:30 on 2022-09-22 00:00:00
UTC+4:30.
// This causes an hour long ambiguous period in local time.
// Asia/Tehran switches from UTC+3:30 to UTC+4:30 on 2022-03-22 00:00:00
UTC+3:30
// This causes an hour long non-existing period in local time.
```
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