GitHub user twalthr opened a pull request:

    [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 FLINK-7337

Alternatively you can review and apply these changes as the patch at:

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 <>
Date:   2017-08-04T00:20:56Z

    [FLINK-7337] [table] Refactor internal handling of time indicator 
    - 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 

commit 876369d41019b3ec5ba824553b31fb2f3b44a18d
Author: Fabian Hueske <>
Date:   2017-08-07T21:39:48Z

    Addressed review feedback

commit 54bfed8debbe29784e0de7f07ebb277df68a4eb5
Author: Fabian Hueske <>
Date:   2017-08-11T14:43:07Z

    minor improvement

commit b0b24011e7c0444e3e1ebaba810edc06e9c85ad6
Author: twalthr <>
Date:   2017-08-12T11:51:42Z

    Efficient handling of rowtime timestamps


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