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From "Apache Spark (JIRA)" <>
Subject [jira] [Assigned] (SPARK-26493) spark.sql.extensions should support multiple extensions
Date Fri, 28 Dec 2018 17:15:00 GMT


Apache Spark reassigned SPARK-26493:

    Assignee:     (was: Apache Spark)

> spark.sql.extensions should support multiple extensions
> -------------------------------------------------------
>                 Key: SPARK-26493
>                 URL:
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.0.0
>            Reporter: Jamison Bennett
>            Priority: Minor
>              Labels: starter
> The spark.sql.extensions configuration options should support multiple extensions. It
is currently possible to load multiple extensions using the programatic interface (e.g. SparkSession.builder().master("..").withExtensions(sparkSessionExtensions1).withExtensions(sparkSessionExtensions2).getOrCreate()
) but the same cannot currently be done with the command line options without writing a wrapper
extensions that combines multiple extensions.
> Allowing multiple spark.sql.extensions, would allow the extensions to be easily changes
on the command line or via the configuration file. Multiple extensions could be specified
using a comma separated list of class names. Allowing multiple extensions should maintain
backwards compatibility because existing spark.sql.extensions configuration settings shouldn't
contain a comma because the value is a class name.

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