[
https://issues.apache.org/jira/browse/SPARK-13574?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15172518#comment-15172518
]
Apache Spark commented on SPARK-13574:
--------------------------------------
User 'nongli' has created a pull request for this issue:
https://github.com/apache/spark/pull/11434
> Improve parquet dictionary decoding for strings
> -----------------------------------------------
>
> Key: SPARK-13574
> URL: https://issues.apache.org/jira/browse/SPARK-13574
> Project: Spark
> Issue Type: Improvement
> Reporter: Nong Li
> Priority: Minor
>
> Currently, the parquet reader will copy the dictionary value for each data
> value. This is bad for string columns as we explode the dictionary during
> decode. We should instead, have the data values point to the safe backing
> memory.
--
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
