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From "cheng (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-24705) Spark.sql.adaptive.enabled=true is enabled and self-join query
Date Sat, 30 Jun 2018 13:45:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-24705?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

cheng updated SPARK-24705:
--------------------------
    Attachment: Error stack.txt

> Spark.sql.adaptive.enabled=true is enabled and self-join query
> --------------------------------------------------------------
>
>                 Key: SPARK-24705
>                 URL: https://issues.apache.org/jira/browse/SPARK-24705
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.2.1, 2.3.1
>            Reporter: cheng
>            Priority: Minor
>         Attachments: Error stack.txt
>
>
>   When loading data using jdbc and enabling spark.sql.adaptive.enabled=true , for example
loading a tableA table, unexpected results can occur when you use the following query.
> For example, my query:
> device_loc table comes from the jdbc data source
> select tv_a.imei
> from ( select a.imei,a.speed from device_loc a) tv_a
> inner join ( select a.imei,a.speed from device_loc a ) tv_b on tv_a.imei = tv_b.imei
> group by tv_a.imei
> When the cache tabel device_loc is executed before this query is executed, everything
is fine,However, if you do not execute cache table, unexpected results will occur, resulting
in failure to execute.



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