[ 
https://issues.apache.org/jira/browse/SPARK-50666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17908135#comment-17908135
 ] 

Shaojie Wu commented on SPARK-50666:
------------------------------------

FYI, [~yumwang] 

> DataFrameReader supporting SQL hint
> -----------------------------------
>
>                 Key: SPARK-50666
>                 URL: https://issues.apache.org/jira/browse/SPARK-50666
>             Project: Spark
>          Issue Type: Improvement
>          Components: Connect
>    Affects Versions: 3.5.4
>            Reporter: Shaojie Wu
>            Priority: Major
>
> We're using DataFrameReader to dump data from an Oracle source, which has a 
> huge table, and want to add hints to target generated SQL.
> Many RDBMS supports SQL hint, and it's useful for performance tuning in a 
> data dump case.
> Can you help to improve this method?
> {code:java}
> def jdbc(
>     url: String,
>     table: String,
>     predicates: Array[String],
>     connectionProperties: Properties): DataFrame  {code}



--
This message was sent by Atlassian Jira
(v8.20.10#820010)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org

Reply via email to