[
https://issues.apache.org/jira/browse/SPARK-23192?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Xiao Li updated SPARK-23192:
----------------------------
Target Version/s: 2.3.0
> Hint is lost after using cached data
> ------------------------------------
>
> Key: SPARK-23192
> URL: https://issues.apache.org/jira/browse/SPARK-23192
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.1, 2.3.0
> Reporter: Xiao Li
> Assignee: Xiao Li
> Priority: Critical
>
> The hint of the plan segment is lost, if the plan segment is replaced by the
> cached data.
> {noformat}
> val df1 = spark.createDataFrame(Seq((1, "4"), (2, "2"))).toDF("key",
> "value")
> val df2 = spark.createDataFrame(Seq((1, "1"), (2, "2"))).toDF("key",
> "value")
> df2.cache()
> val df3 = df1.join(broadcast(df2), Seq("key"), "inner")
> {noformat}
> Hint is lost in {{df3}}. The physical join algorithm will not respect the
> hint due to the loss.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
