Re: [PATCH] GROUP BY ALL - Mailing list pgsql-hackers

On 23.07.24 00:29, Tom Lane wrote:
> (Personally, I'd wonder exactly what ALL is quantified over: the
> whole output of the FROM clause, or only columns mentioned in the
> SELECT tlist, or what? And why that choice rather than another?)

Looks like the main existing implementations take it to mean all entries 
in the SELECT list that are not aggregate functions.

https://duckdb.org/docs/sql/query_syntax/groupby.html#group-by-all
https://docs.databricks.com/en/sql/language-manual/sql-ref-syntax-qry-select-groupby.html#parameters
https://docs.snowflake.com/en/sql-reference/constructs/group-by#parameters