The query expression algorithms can be broken into the following categories:
Except algorithms, which include MergeExcept and HashExcept
Intersect algorithms, which include MergeIntersect and HashIntersect
Union algorithms, which include Union, UnionAll, and RecursiveUnion
Except algorithms (EAH, EAM, EH, EM)
Intersect algorithms (IH, IM, IAH, IAM)
RecursiveTable algorithm (RT)
RecursiveUnion algorithm (RU)
RowReplicate algorithm (RR)
UnionAll algorithm (UA)
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