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https://issues.apache.org/jira/browse/SPARK-34358?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17280380#comment-17280380
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Hyukjin Kwon commented on SPARK-34358:
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Please link stackoverflow questions or mailing list to support your statement,
and open a PR to add it.
> Add API for all built-in expresssion functions
> ----------------------------------------------
>
> Key: SPARK-34358
> URL: https://issues.apache.org/jira/browse/SPARK-34358
> Project: Spark
> Issue Type: Improvement
> Components: Java API, PySpark
> Affects Versions: 3.0.1
> Reporter: Malthe Borch
> Priority: Minor
>
> From the [SQL
> functions|https://spark.apache.org/docs/latest/api/java/org/apache/spark/sql/functions.html]
> documentation:
> {quote}Commonly used functions available for DataFrame operations. Using
> functions defined here provides a little bit more compile-time safety to make
> sure the function exists. {quote}
> Functions such as "inline_outer" are actually commonly used, but are not
> currently included in the API, meaning that we lose compile-time safety for
> those invocations. We should implement the required function definitions for
> the remaining built-in functions when applicable.
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