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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-10259) Key validation for GroupWindowAggregate is broken
Date Fri, 31 Aug 2018 07:36:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-10259?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16598371#comment-16598371

ASF GitHub Bot commented on FLINK-10259:

fhueske opened a new pull request #6641: [FLINK-10259] Fix key extraction for GroupWindows.
URL: https://github.com/apache/flink/pull/6641
   ## What is the purpose of the change
   Fixes the key validation for SQL queries with group window aggregates that are emitted
to an `UpsertStreamTableSink`.
   ## Brief change log
   * Handle window properties (start, end, rowtime) in one equivalence group because all property
attributes identify the same window.
   * Add tests for SQL `INSERT INTO` of different result types to different types of table
   ## Verifying this change
   * Run the added tests.
   ## Does this pull request potentially affect one of the following parts:
     - Dependencies (does it add or upgrade a dependency): **no**
     - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: **no**
     - The serializers: **no**
     - The runtime per-record code paths (performance sensitive): **no**
     - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing,
Yarn/Mesos, ZooKeeper: **no**
     - The S3 file system connector: **no**
   ## Documentation
     - Does this pull request introduce a new feature? **no**
     - If yes, how is the feature documented? **n/a**

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> Key validation for GroupWindowAggregate is broken
> -------------------------------------------------
>                 Key: FLINK-10259
>                 URL: https://issues.apache.org/jira/browse/FLINK-10259
>             Project: Flink
>          Issue Type: Bug
>          Components: Table API &amp; SQL
>            Reporter: Fabian Hueske
>            Assignee: Fabian Hueske
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.6.1, 1.7.0, 1.5.4
> WindowGroups have multiple equivalent keys (start, end) that should be handled differently
from other keys. The {{UpdatingPlanChecker}} uses equivalence groups to identify equivalent
keys but the keys of WindowGroups are not correctly assigned to groups.
> This means that we cannot correctly extract keys from queries that use group windows.

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