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https://issues.apache.org/jira/browse/FLINK-7337?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16124548#comment-16124548
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ASF GitHub Bot commented on FLINK-7337:
---------------------------------------
GitHub user twalthr opened a pull request:
https://github.com/apache/flink/pull/4532
[FLINK-7337] [table] Refactor internal handling of time indicator
attributes and efficiency
## What is the purpose of the change
*This PR is an improvement of @fhueske's PR #4488. For an description see
#4488. This PR improves the efficiency by not creating objects for every
timestamps but Long values and serializing them using the LongSerializer. It
also contains code clean-up changes.*
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/twalthr/flink FLINK-7337
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/4532.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #4532
----
commit 03ca69505e14aea5452a1b6e77d942ecc2440de4
Author: Fabian Hueske <[email protected]>
Date: 2017-08-04T00:20:56Z
[FLINK-7337] [table] Refactor internal handling of time indicator
attributes.
- Expand phyiscal Row schema for time indicators.
- Refactor computation of logical schema of tables to import.
- Refactor operators to use time attribute in Row instead of StreamRecord
timestamp.
commit 876369d41019b3ec5ba824553b31fb2f3b44a18d
Author: Fabian Hueske <[email protected]>
Date: 2017-08-07T21:39:48Z
Addressed review feedback
commit 54bfed8debbe29784e0de7f07ebb277df68a4eb5
Author: Fabian Hueske <[email protected]>
Date: 2017-08-11T14:43:07Z
minor improvement
commit b0b24011e7c0444e3e1ebaba810edc06e9c85ad6
Author: twalthr <[email protected]>
Date: 2017-08-12T11:51:42Z
Efficient handling of rowtime timestamps
----
> Refactor handling of time indicator attributes
> ----------------------------------------------
>
> Key: FLINK-7337
> URL: https://issues.apache.org/jira/browse/FLINK-7337
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Affects Versions: 1.4.0
> Reporter: Fabian Hueske
> Assignee: Fabian Hueske
>
> After a [discussion on the dev mailing
> list|https://lists.apache.org/thread.html/735d55f9022df8ff73566a9f1553e14be94f8443986ad46559b35869@%3Cdev.flink.apache.org%3E]
> I propose the following changes to the current handling of time indicator
> attributes:
> * Remove the separation of logical and physical row type.
> ** Hold the event-time timestamp as regular Long field in Row
> ** Represent the processing-time indicator type as a null-valued field in Row
> (1 bit overhead)
> * Remove materialization of event-time timestamps because timestamp is
> already accessible in Row.
> * Add {{ProcessFunction}} to set timestamp into the timestamp field of a
> {{StreamRecord}}.
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