Re: Bug #545: Keyword USER not detected in CREATE VIEW
От | Tom Lane |
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Тема | Re: Bug #545: Keyword USER not detected in CREATE VIEW |
Дата | |
Msg-id | 14941.1009574255@sss.pgh.pa.us обсуждение исходный текст |
Ответ на | Re: Bug #545: Keyword USER not detected in CREATE VIEW (Thomas Lockhart <lockhart@fourpalms.org>) |
Список | pgsql-bugs |
Thomas Lockhart <lockhart@fourpalms.org> writes: > avi=> create view z as select x as user from y; > My expected result: an error message in CREATE VIEW >> This is not a bug, it is intentional behavior. "AS" names are not >> restricted to be non-reserved words. > Sure, but his point is that the resulting view has a column which is > named "user" and which is not directly accessible without using double > quotes. Yeah, but what would you do about it? The identical situation can be created in at least three ways: create table foo ("user" varchar); create view foo as select x as "user" from y; create view foo as select x as user from y; I would certainly object to emitting a warning notice in the first two cases. There might be some merit in warning about the third, but I don't see a reasonable way to distinguish it from the others. A not-unrelated point: would you also have the system warn about create table foo ("Foo" varchar); Here again the column cannot be named without using quotes. But I'd see issuing a warning about it as unwarranted nannyism. regards, tom lane
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