Shubham Chaurasia created HIVE-21729:
----------------------------------------
Summary: Arrow serializer sometimes shifts timestamp by one second
Key: HIVE-21729
URL: https://issues.apache.org/jira/browse/HIVE-21729
Project: Hive
Issue Type: Bug
Components: Serializers/Deserializers
Affects Versions: 3.1.1
Reporter: Shubham Chaurasia
Assignee: Shubham Chaurasia
This happens due to
[secondInMicros|https://github.com/apache/hive/blob/rel/release-3.1.1/ql/src/java/org/apache/hadoop/hive/ql/io/arrow/Serializer.java#L445]
are calculated like
{code}
final long secondInMicros = (secondInMillis - secondInMillis %
MILLIS_PER_SECOND) * MICROS_PER_MILLIS;
{code}
Instead this should be calculated like(by taking nanos from
timestampColumnVector itself)
{code}
final long nanos = timestampColumnVector.getNanos(j);
final long secondInMicros = (secondInMillis - nanos / NS_PER_MILLIS) *
MICROS_PER_MILLIS;
{code}
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
