[ 
https://issues.apache.org/jira/browse/SPARK-42359?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17684689#comment-17684689
 ] 

Willi Raschkowski commented on SPARK-42359:
-------------------------------------------

This repeats SPARK-26406 but it's worth reconsidering now that SQL / DataFrame 
APIs established themselves as "preferred" way to interact with Spark and 
platforms like Databricks SQL increase collaboration with less-technical users. 
Meanwhile, the RDD and {{zipWithIndex}} workaround is awkward because it 
implies some ordering that can't be assumed at the RDD-level but the datasource 
_can_ assume at the CSV-level.

> Support row skipping when reading CSV files
> -------------------------------------------
>
>                 Key: SPARK-42359
>                 URL: https://issues.apache.org/jira/browse/SPARK-42359
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.3.1
>            Reporter: Willi Raschkowski
>            Priority: Major
>         Attachments: Screenshot 2023-02-06 at 13.23.34.png
>
>
> Spark currently can't read CSV files that contain lines with comments or 
> annotations above the header and data. Work-arounds include pre-processing 
> CSVs, or using RDDs and something like {{zipWithIndex}}. But all of these 
> increase friction for less technical users.
> This issue proposes a {{skipLines}} option for Spark's CSV parser to drop a 
> number of unwanted lines at the top of a CSV file.



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

---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]

Reply via email to