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https://issues.apache.org/jira/browse/BEAM-8645?focusedWorklogId=348703&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-348703
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ASF GitHub Bot logged work on BEAM-8645:
----------------------------------------
Author: ASF GitHub Bot
Created on: 24/Nov/19 12:44
Start Date: 24/Nov/19 12:44
Worklog Time Spent: 10m
Work Description: HuangLED commented on issue #10081: [BEAM-8645] A test
case for TimestampCombiner.
URL: https://github.com/apache/beam/pull/10081#issuecomment-557884974
Thanks for applying the unskip test.
All test now passed. This PR is ready to be merged.
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Issue Time Tracking
-------------------
Worklog Id: (was: 348703)
Time Spent: 8h 20m (was: 8h 10m)
> TimestampCombiner incorrect in beam python
> ------------------------------------------
>
> Key: BEAM-8645
> URL: https://issues.apache.org/jira/browse/BEAM-8645
> Project: Beam
> Issue Type: Bug
> Components: sdk-py-core
> Reporter: Ruoyun Huang
> Priority: Major
> Time Spent: 8h 20m
> Remaining Estimate: 0h
>
> When we have a TimestampValue on combine:
> {code:java}
> main_stream = (p
> | 'main TestStream' >> TestStream()
> .add_elements([window.TimestampedValue(('k', 100), 0)])
> .add_elements([window.TimestampedValue(('k', 400), 9)])
> .advance_watermark_to_infinity()
> | 'main windowInto' >> beam.WindowInto(
> window.FixedWindows(10),
> timestamp_combiner=TimestampCombiner.OUTPUT_AT_LATEST) |
> 'Combine' >> beam.CombinePerKey(sum))
> The expect timestamp should be:
> LATEST: (('k', 500), Timestamp(9)),
> EARLIEST: (('k', 500), Timestamp(0)),
> END_OF_WINDOW: (('k', 500), Timestamp(10)),
> But current py streaming gives following results:
> LATEST: (('k', 500), Timestamp(10)),
> EARLIEST: (('k', 500), Timestamp(10)),
> END_OF_WINDOW: (('k', 500), Timestamp(9.99999999)),
> More details and discussions:
> https://lists.apache.org/thread.html/d3af1f2f84a2e59a747196039eae77812b78a991f0f293c717e5f4e1@%3Cdev.beam.apache.org%3E
> {code}
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