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https://issues.apache.org/jira/browse/SPARK-28661?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Xiao Li resolved SPARK-28661.
-----------------------------
Resolution: Later
> Hypothetical-Set Aggregate Functions
> ------------------------------------
>
> Key: SPARK-28661
> URL: https://issues.apache.org/jira/browse/SPARK-28661
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Yuming Wang
> Priority: Major
>
> ||Function||Direct Argument Type(s)||Aggregated Argument Type(s)||Return
> Type||Partial Mode||Description||
> |{{rank(_args_}}) WITHIN GROUP (ORDER BY {{sorted_args}})|{{VARIADIC}}
> {{"any"}}|{{VARIADIC}} {{"any"}}|{{bigint}}|No|rank of the hypothetical row,
> with gaps for duplicate rows|
> |{{dense_rank(_args_}}) WITHIN GROUP (ORDER BY {{sorted_args}})|{{VARIADIC}}
> {{"any"}}|{{VARIADIC}} {{"any"}}|{{bigint}}|No|rank of the hypothetical row,
> without gaps|
> |{{percent_rank(_args_}}) WITHIN GROUP (ORDER BY
> {{sorted_args}})|{{VARIADIC}} {{"any"}}|{{VARIADIC}} {{"any"}}|{{double
> precision}}|No|relative rank of the hypothetical row, ranging from 0 to 1|
> |{{cume_dist(_args_}}) WITHIN GROUP (ORDER BY {{sorted_args}})|{{VARIADIC}}
> {{"any"}}|{{VARIADIC}} {{"any"}}|{{double precision}}|No|relative rank of the
> hypothetical row, ranging from 1/_{{N}}_ to 1|
> [https://www.postgresql.org/docs/11/functions-aggregate.html#FUNCTIONS-HYPOTHETICAL-TABLE]
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