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From "Yin Huai (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SPARK-15443) Properly explain the streaming queries
Date Thu, 23 Jun 2016 23:05:16 GMT

     [ https://issues.apache.org/jira/browse/SPARK-15443?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yin Huai resolved SPARK-15443.
------------------------------
       Resolution: Fixed
    Fix Version/s: 2.0.0

Issue resolved by pull request 13815
[https://github.com/apache/spark/pull/13815]

> Properly explain the streaming queries
> --------------------------------------
>
>                 Key: SPARK-15443
>                 URL: https://issues.apache.org/jira/browse/SPARK-15443
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL, Streaming
>    Affects Versions: 2.0.0
>            Reporter: Saisai Shao
>            Assignee: Shixiong Zhu
>            Priority: Minor
>             Fix For: 2.0.0
>
>
> Currently when called `explain()` on streaming dataset, it will only get the parsed and
analyzed logical plan, exceptions for optimized logical plan and physical plan, like below:
> {code}
> scala> res0.explain(true)
> == Parsed Logical Plan ==
> FileSource[file:///tmp/input]
> == Analyzed Logical Plan ==
> value: string
> FileSource[file:///tmp/input]
> == Optimized Logical Plan ==
> org.apache.spark.sql.AnalysisException: Queries with streaming sources must be executed
with write.startStream();
> == Physical Plan ==
> org.apache.spark.sql.AnalysisException: Queries with streaming sources must be executed
with write.startStream();
> {code}
> The reason is that structure streaming dynamically materialize the plan in the run-time.
> So here we should figure out a way to properly get the streaming plan. 



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