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https://issues.apache.org/jira/browse/BEAM-8456?focusedWorklogId=331781&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-331781
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ASF GitHub Bot logged work on BEAM-8456:
----------------------------------------
Author: ASF GitHub Bot
Created on: 22/Oct/19 03:48
Start Date: 22/Oct/19 03:48
Worklog Time Spent: 10m
Work Description: kennknowles commented on pull request #9849:
[BEAM-8456] Add pipeline option to have Data Catalog truncate sub-millisecond
precision
URL: https://github.com/apache/beam/pull/9849
Currently we default to crashing when we encounter sub-millisecond
precision. This default is safe, but wrong for almost all users. Adding a
default that "drops data" by truncating feels wrong. So instead this will allow
any system with a default set of properties to set truncation to the default.
------------------------
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Issue Time Tracking
-------------------
Worklog Id: (was: 331781)
Remaining Estimate: 0h
Time Spent: 10m
> BigQuery to Beam SQL timestamp has the wrong default: truncation makes the
> most sense
> -------------------------------------------------------------------------------------
>
> Key: BEAM-8456
> URL: https://issues.apache.org/jira/browse/BEAM-8456
> Project: Beam
> Issue Type: Improvement
> Components: dsl-sql
> Reporter: Kenneth Knowles
> Assignee: Kenneth Knowles
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Most of the time, a user reading a timestamp from BigQuery with
> higher-than-millisecond precision timestamps may not even realize that the
> data source created these high precision timestamps. They are probably
> timestamps on log entries generated by a system with higher precision.
> If they are using it with Beam SQL, which only supports millisecond
> precision, it makes sense to "just work" by default.
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