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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2018/10/23 05:15:00 UTC
[jira] [Commented] (SPARK-25656) Add an example section about how
to use Parquet/ORC library options
[ https://issues.apache.org/jira/browse/SPARK-25656?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16660091#comment-16660091 ]
Apache Spark commented on SPARK-25656:
--------------------------------------
User 'dongjoon-hyun' has created a pull request for this issue:
https://github.com/apache/spark/pull/22801
> Add an example section about how to use Parquet/ORC library options
> -------------------------------------------------------------------
>
> Key: SPARK-25656
> URL: https://issues.apache.org/jira/browse/SPARK-25656
> Project: Spark
> Issue Type: Documentation
> Components: Documentation, Examples, SQL
> Affects Versions: 3.0.0
> Reporter: Dongjoon Hyun
> Priority: Major
>
> Our current doc does not explain we are passing the data source specific options to the underlying data source:
> - https://spark.apache.org/docs/latest/sql-programming-guide.html#manually-specifying-options
> We can add some introduction section for both Parquet/ORC examples there. We had better give both read/write side configuration examples, too. One example candidate is `dictionary encoding`: `parquet.enable.dictionary` and `orc.dictionary.key.threshold` et al.
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