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https://issues.apache.org/jira/browse/BEAM-2953?focusedWorklogId=258074&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-258074
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ASF GitHub Bot logged work on BEAM-2953:
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Author: ASF GitHub Bot
Created on: 11/Jun/19 20:00
Start Date: 11/Jun/19 20:00
Worklog Time Spent: 10m
Work Description: stale[bot] commented on issue #6540: [BEAM-2953]
Timeseries extensions .
URL: https://github.com/apache/beam/pull/6540#issuecomment-501000256
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Issue Time Tracking
-------------------
Worklog Id: (was: 258074)
Time Spent: 4h 20m (was: 4h 10m)
> Timeseries processing extensions using state API
> ------------------------------------------------
>
> Key: BEAM-2953
> URL: https://issues.apache.org/jira/browse/BEAM-2953
> Project: Beam
> Issue Type: Improvement
> Components: sdk-ideas
> Affects Versions: 2.7.0
> Reporter: Reza ardeshir rokni
> Priority: Minor
> Time Spent: 4h 20m
> Remaining Estimate: 0h
>
> A general set of timeseries transforms that abstract the user from the
> process of dealing with some of the common problems when dealing with
> timeseries using BEAM (in stream or batch mode).
> BEAM can be used to build out some very interesting pre-processing stages for
> time series data. Some examples that will be useful:
> - Downsampling time series based on simple MIN, MAX, COUNT, SUM, LAST, FIRST
> - Creating a value for each downsampled window even if no value has been
> emitted for the specific key.
> - Loading the value of a downsample with the previous value (used in FX with
> previous close being brought into current open value)
>
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