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https://issues.apache.org/jira/browse/BEAM-7064?focusedWorklogId=228003&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-228003
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ASF GitHub Bot logged work on BEAM-7064:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 15/Apr/19 22:16
            Start Date: 15/Apr/19 22:16
    Worklog Time Spent: 10m 
      Work Description: kennknowles commented on issue #8289: [BEAM-7064] 
Reject BigQuery data with sub-millisecond precision, instead of losing data
URL: https://github.com/apache/beam/pull/8289#issuecomment-483438908
 
 
   Because of how the TableRow to Beam Row conversion is currently expressed a 
bit differently (as a map of typename to parser), it will be a moderate 
refactor to share these conversion options. I don't want to confuse this review 
with that, but will start work on it since we don't want to lose data there 
either.
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 228003)
    Time Spent: 3h 20m  (was: 3h 10m)

> Conversion of timestamp from BigQuery row to Beam row loses precision
> ---------------------------------------------------------------------
>
>                 Key: BEAM-7064
>                 URL: https://issues.apache.org/jira/browse/BEAM-7064
>             Project: Beam
>          Issue Type: Bug
>          Components: sdk-java-core
>            Reporter: Kenneth Knowles
>            Assignee: Kenneth Knowles
>            Priority: Critical
>          Time Spent: 3h 20m
>  Remaining Estimate: 0h
>
> Currently, the utilities to convert from BigQuery row to Beam row simply 
> truncate timestamps at millisecond precision. This is unacceptable. Instead, 
> an error should be raised indicating that it is not supported.



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