spark-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (SPARK-24244) Parse only required columns of CSV file
Date Thu, 10 May 2018 18:58:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-24244?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Apache Spark reassigned SPARK-24244:
------------------------------------

    Assignee: Apache Spark

> Parse only required columns of CSV file
> ---------------------------------------
>
>                 Key: SPARK-24244
>                 URL: https://issues.apache.org/jira/browse/SPARK-24244
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.3.0
>            Reporter: Maxim Gekk
>            Assignee: Apache Spark
>            Priority: Minor
>
> uniVocity parser allows to specify only required column names or indexes for parsing
like:
> {code}
> // Here we select only the columns by their indexes.
> // The parser just skips the values in other columns
> parserSettings.selectIndexes(4, 0, 1);
> CsvParser parser = new CsvParser(parserSettings);
> {code}
> Need to modify *UnivocityParser* to extract only needed columns from requiredSchema



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org


Mime
View raw message