[GitHub] samza pull request #547: Convert a put to to a delete operation in ReadWrite...

[weisong44 <gi...@git.apache.org>]

GitHub user weisong44 opened a pull request:

    https://github.com/apache/samza/pull/547

    Convert a put to to a delete operation in ReadWriteTable and TableWriteFunction when input value is null

    Currently, the behavior of putting a null value is inconsistent: it is a delete for RocksDB, and not supported in in-memory store, and on a case-by-case basis for remote tables. It is desirable to unify the behavior. Furthermore, it eases the writing of a change captured stream to a table. A change captured stream contains typically 3 types of events: INSERT, UPDATE and DELETE, and they need to be applied properly when written to a table to produce a correct snapshot. In a change captured stream the payload of a DELETE event is typically is null, and this would result in a delete operation to a table in sendTo() operator.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/weisong44/samza table-fix

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

    https://github.com/apache/samza/pull/547.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 #547
    
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commit a3c5476c00da63902a529b6bbea665faa3da0099
Author: Wei Song <ws...@...>
Date:   2018-06-06T20:08:09Z

    Convert a put to to a delete operation when input value is null.

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[GitHub] samza pull request #547: Convert a put to to a delete operation in ReadWrite...

[asfgit <gi...@git.apache.org>]

Github user asfgit closed the pull request at:

    https://github.com/apache/samza/pull/547


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