DjvuLee created SPARK-19327:
-------------------------------
Summary: Improve the partition method when read data from jdbc
Key: SPARK-19327
URL: https://issues.apache.org/jira/browse/SPARK-19327
Project: Spark
Issue Type: Improvement
Components: SQL
Reporter: DjvuLee
The partition method in `jdbc` when specify the column using the equal step,
this can lead to skew between partitions. The new method introduce a balance
partition method base on the elements, this can avoid the skew problem.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
