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https://issues.apache.org/jira/browse/SPARK-20456?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15983888#comment-15983888
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Hyukjin Kwon commented on SPARK-20456:
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I simply left the comment above as the current status does not sound matching
with the description and the title. Let's fix the title and the description
here.
> Document major aggregation functions for pyspark
> ------------------------------------------------
>
> Key: SPARK-20456
> URL: https://issues.apache.org/jira/browse/SPARK-20456
> Project: Spark
> Issue Type: Documentation
> Components: Documentation
> Affects Versions: 2.1.0
> Reporter: Michael Patterson
> Priority: Minor
>
> Document `sql.functions.py`:
> 1. Document the common aggregate functions (`min`, `max`, `mean`, `count`,
> `collect_set`, `collect_list`, `stddev`, `variance`)
> 2. Rename columns in datetime examples.
> 3. Add examples for `unix_timestamp` and `from_unixtime`
> 4. Add note to all trigonometry functions that units are radians.
> 5. Document `lit`
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