You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@spark.apache.org by "Wei Guo (Jira)" <ji...@apache.org> on 2023/02/05 14:49:00 UTC
[jira] [Updated] (SPARK-42335) Pass the comment option through to univocity if users set it explicitly in CSV dataSource
[ https://issues.apache.org/jira/browse/SPARK-42335?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wei Guo updated SPARK-42335:
----------------------------
Summary: Pass the comment option through to univocity if users set it explicitly in CSV dataSource (was: Pass the comment option through to univocity if users set it explicity in CSV dataSource)
> Pass the comment option through to univocity if users set it explicitly in CSV dataSource
> -----------------------------------------------------------------------------------------
>
> Key: SPARK-42335
> URL: https://issues.apache.org/jira/browse/SPARK-42335
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.0.0, 3.1.0, 3.2.0, 3.3.0
> Reporter: Wei Guo
> Priority: Minor
> Fix For: 3.4.0
>
> Attachments: image-2023-02-03-18-56-01-596.png, image-2023-02-03-18-56-10-083.png
>
>
> In PR [https://github.com/apache/spark/pull/29516], in order to fix some bugs, univocity-parsers used by CSV dataSource was upgraded from 2.8.3 to 2.9.0, it also involved a new feature of univocity-parsers that quoting values of the first column that start with the comment character. It made a breaking for users downstream that handing a whole row as input.
>
> For codes:
> {code:java}
> Seq(("#abc", 1)).toDF.write.csv("/Users/guowei/comment_test") {code}
> Before Spark 3.0，the content of output CSV files is shown as:
> !image-2023-02-03-18-56-01-596.png!
> After this change, the content is shown as:
> !image-2023-02-03-18-56-10-083.png!
> For users, they can't set comment option to '\u0000' to keep the behavior as before because the new added `isCommentSet` check logic as follows:
> {code:java}
> val isCommentSet = this.comment != '\u0000'
> def asWriterSettings: CsvWriterSettings = {
> // other code
> if (isCommentSet) {
> format.setComment(comment)
> }
> // other code
> }
> {code}
> It's better to pass the comment option through to univocity if users set it explicitly in CSV dataSource.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org