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Posted to issues@flink.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2018/10/22 09:31:00 UTC

[jira] [Commented] (FLINK-10638) Invalid table scan resolution for temporal join queries

    [ https://issues.apache.org/jira/browse/FLINK-10638?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16658775#comment-16658775 ] 

ASF GitHub Bot commented on FLINK-10638:
----------------------------------------

twalthr opened a new pull request #6893: [FLINK-10638] [table] Fix table scan resolution for temporal join queries
URL: https://github.com/apache/flink/pull/6893
 
 
   ## What is the purpose of the change
   
   Changes the optimization order such that table scans are resolved to full plan nodes before performing temporal join conversion.
   
   ## Brief change log
   
   - Optimization order changed.
   
   
   ## Verifying this change
   
   Extended temporal join IT case.
   
   ## 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? not applicable
   

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> Invalid table scan resolution for temporal join queries
> -------------------------------------------------------
>
>                 Key: FLINK-10638
>                 URL: https://issues.apache.org/jira/browse/FLINK-10638
>             Project: Flink
>          Issue Type: Bug
>          Components: Table API &amp; SQL
>            Reporter: Timo Walther
>            Assignee: Timo Walther
>            Priority: Major
>              Labels: pull-request-available
>
> Registered tables that contain a temporal join are not properly resolved when performing a table scan.
> A planning error occurs when registering a table with a temporal join and reading from it again.
> {code}
> LogicalProject(amount=[*($0, $4)])
>   LogicalFilter(condition=[=($3, $1)])
>     LogicalCorrelate(correlation=[$cor0], joinType=[inner], requiredColumns=[{2}])
>       LogicalTableScan(table=[[_DataStreamTable_0]])
>       LogicalTableFunctionScan(invocation=[Rates(CAST($cor0.rowtime):TIMESTAMP(3) NOT NULL)], rowType=[RecordType(VARCHAR(65536) currency, BIGINT rate, TIME ATTRIBUTE(ROWTIME) rowtime)], elementType=[class [Ljava.lang.Object;])
> {code}



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