Re: clarification on chaining of set operations

2021-10-04 Thread Tom Lane
PG Doc comments form writes: > Regarding section 7.4 of the documentation. I was curious about the > behavior when combining different set operations in one query, e.g, > query1 op1 query2 op2 query3; > where op1 and op2 are one of UNION, INTERSECT, EXCEPT. > The documentation suggests that

clarification on chaining of set operations

2021-10-04 Thread PG Doc comments form
The following documentation comment has been logged on the website: Page: https://www.postgresql.org/docs/12/queries-union.html Description: Apologies if this has been raised previously - I searched the archives and did not find anything. Regarding section 7.4 of the documentation. I was