tustvold commented on code in PR #2846:
URL: https://github.com/apache/arrow-rs/pull/2846#discussion_r990606974
##########
arrow/src/compute/kernels/cast.rs:
##########
@@ -1329,30 +1321,13 @@ pub fn cast_with_options(
let converted = if from_size >= to_size {
divide_scalar(&time_array, from_size / to_size)?
} else {
- multiply(
- &time_array,
- &Int64Array::from(vec![to_size / from_size; array.len()]),
- )?
+ multiply_scalar(&time_array, to_size / from_size)?
};
- let array_ref = Arc::new(converted) as ArrayRef;
- use TimeUnit::*;
- match to_unit {
- Second => {
- cast_array_data::<TimestampSecondType>(&array_ref,
to_type.clone())
- }
- Millisecond => cast_array_data::<TimestampMillisecondType>(
- &array_ref,
- to_type.clone(),
- ),
- Microsecond => cast_array_data::<TimestampMicrosecondType>(
- &array_ref,
- to_type.clone(),
- ),
- Nanosecond => cast_array_data::<TimestampNanosecondType>(
- &array_ref,
- to_type.clone(),
- ),
- }
+ Ok(make_timestamp_array(
+ &converted,
+ to_unit.clone(),
+ to_tz.clone(),
+ ))
Review Comment:
Not sure, the values should be UTC. Regardless this was the prior behaviour
and there is a ticket already taking this
https://github.com/apache/arrow-rs/issues/1936
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