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https://issues.apache.org/jira/browse/BEAM-2969?focusedWorklogId=212685&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-212685
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ASF GitHub Bot logged work on BEAM-2969:
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Author: ASF GitHub Bot
Created on: 13/Mar/19 21:16
Start Date: 13/Mar/19 21:16
Worklog Time Spent: 10m
Work Description: pabloem commented on issue #8046: [BEAM-2969] Handle
negative AVRO timestamps
URL: https://github.com/apache/beam/pull/8046#issuecomment-472608959
What happens if we need 64 bits to represent a positive time? Maybe that's
too far in the future?
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Issue Time Tracking
-------------------
Worklog Id: (was: 212685)
Time Spent: 1h 50m (was: 1h 40m)
> BigQueryIO fails when reading then writing timestamps before 1970
> -----------------------------------------------------------------
>
> Key: BEAM-2969
> URL: https://issues.apache.org/jira/browse/BEAM-2969
> Project: Beam
> Issue Type: Bug
> Components: io-java-gcp
> Reporter: Kevin Peterson
> Assignee: Udi Meiri
> Priority: Major
> Time Spent: 1h 50m
> Remaining Estimate: 0h
>
> I have a batch pipeline which reads from BigQuery (via standard sql query),
> does a small transform, and writes the data back to BigQuery.
> This fails if any timestamps are present in the BQ data from before 1970:
> {{"message" : "JSON parsing error in row starting at position 0: Couldn't
> convert value to timestamp: Could not parse '1969-12-28 02:52:54.-484 UTC' as
> a timestamp. Required format is YYYY-MM-DD HH:MM[:SS[.SSSSSS]] Field:
> observed_timestamp; Value: 1969-12-28 02:52:54.-484 UTC",}}
> It appears the TableRow coder doesn't handle negative timestamps properly,
> using a negative number for the fractions of a second, which BQ considers
> invalid.
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