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9024a35c11
queries.sgml failed to mention the rather important point that INTERSECT binds more tightly than UNION or EXCEPT. I thought it could also use more discussion of the role of parentheses in these constructs. Per gripe from Christopher Painter-Wakefield. Discussion: https://postgr.es/m/163338891727.12510.3939775743980651160@wrigleys.postgresql.org