https://learn.microsoft.com/en-us/previous-versions/sql/sql-server-2008/bb510427(v=sql.100)
GROUPING SETS Equivalents | Microsoft Learn
grouping setsequivalentsmicrosoftlearn
https://doris.apache.org/ja/community/design/grouping_sets_design/
GROUPING SETS Design - Apache Doris
grouping setsdesignapachedoris
https://commitfest.postgresql.org/patch/1324/
Improper const-evaluation of HAVING with grouping sets and subquery pullup
grouping setsimproperconstevaluation
https://www.sciencedaily.com/releases/2018/03/180323084836.htm
Grouping students into ability-based sets holds back less able pupils | ScienceDaily
Students classed as less able are being hindered by being grouped into ability-based sets, according to new research.
https://neon.com/postgresql/tutorial/grouping-sets
PostgreSQL GROUPING SETS
Show you how to use PostgreSQL GROUPING SETS to generate a result set equivalent to the one generated by the UNION ALL of multiple GROUP BY clauses.
postgresqlgroupingsets