zhangstar333 commented on code in PR #61396:
URL: https://github.com/apache/doris/pull/61396#discussion_r2957341320
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be/src/core/data_type_serde/data_type_datetimev2_serde.cpp:
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@@ -355,12 +355,24 @@ Status
DataTypeDateTimeV2SerDe::write_column_to_arrow(const IColumn& column,
DateV2Value<DateTimeV2ValueType> datetime_val = col_data[i];
datetime_val.unix_timestamp(×tamp, real_ctz);
- if (_scale > 3) {
+ switch (timestamp_type->unit()) {
+ case arrow::TimeUnit::NANO: {
uint32_t microsecond = datetime_val.microsecond();
- timestamp = (timestamp * 1000000) + microsecond;
- } else if (_scale > 0) {
+ timestamp = (timestamp * 1000000000LL) + (microsecond *
1000LL);
Review Comment:
here overflow of int64 when datetime is 9999-12-31
need some time to find soultion
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