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Posted to issues@spark.apache.org by "Yuming Wang (JIRA)" <ji...@apache.org> on 2019/08/08 13:14:00 UTC
[jira] [Created] (SPARK-28661) Hypothetical-Set Aggregate Functions
Yuming Wang created SPARK-28661:
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Summary: 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
||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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