Reynold Xin created SPARK-41635:
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Summary: GROUP BY ALL
Key: SPARK-41635
URL: https://issues.apache.org/jira/browse/SPARK-41635
Project: Spark
Issue Type: New Feature
Components: SQL
Affects Versions: 3.3.0
Reporter: Reynold Xin
Assignee: Reynold Xin
This patch implements GROUP BY ALL, similar to the one initially implemented in
DuckDB. When specified, the analyzer automatically infers the grouping columns
based on the expressions specified in the select clause: all expressions that
don't include any aggregate expressions are pulled implicitly into the grouping
columns. This avoids users having to specify individually the list of grouping
columns in most cases.
Examples:
{{select key, count(*), sum(score) from table group by all}}
{{-- rewritten to}}
{{select key, count(*), sum(score) from table group by key}}
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