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https://issues.apache.org/jira/browse/HIVE-6656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Prasanth J updated HIVE-6656:
-----------------------------
Description:
ORC timestamp writer stores the number of trailing zeros in 3 LSB bits. There
is a bug in parsing nanosecond logic that returns incorrect value.
Input:
1999-01-01 00:00:00.999999999
Output:
1999-01-01 00:00:00.463129087
The fix for this is parseNanos() should first right shift by 3 and then
typecast to int.
was:
ORC timestamp writer stores the number of trailing zeros in 3 LSB bits. There
is a bug in parsing nanosecond logic that returns incorrect value.
Input:
1999-01-01 00:00:00.999999999
Output:
1999-01-01 00:00:00.463129087
> Bug in ORC Timestamp reader returns wrong nanoseconds
> -----------------------------------------------------
>
> Key: HIVE-6656
> URL: https://issues.apache.org/jira/browse/HIVE-6656
> Project: Hive
> Issue Type: Bug
> Affects Versions: 0.13.0, 0.14.0
> Reporter: Prasanth J
> Assignee: Prasanth J
> Labels: orcfile
> Attachments: HIVE-6656.1.patch
>
>
> ORC timestamp writer stores the number of trailing zeros in 3 LSB bits. There
> is a bug in parsing nanosecond logic that returns incorrect value.
> Input:
> 1999-01-01 00:00:00.999999999
> Output:
> 1999-01-01 00:00:00.463129087
> The fix for this is parseNanos() should first right shift by 3 and then
> typecast to int.
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