Re: [HACKERS] Parser bug: alias is a "non-group column"?
От | Bruce Momjian |
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Тема | Re: [HACKERS] Parser bug: alias is a "non-group column"? |
Дата | |
Msg-id | 199905100503.BAA24000@candle.pha.pa.us обсуждение исходный текст |
Ответы |
Re: [HACKERS] Parser bug: alias is a "non-group column"?
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Список | pgsql-hackers |
Where did we leave this? > Given > create table t1 (name text, value float8); > > this works: > SELECT name, value FROM t1 GROUP BY name, value > HAVING value/AVG(value) > 0.75; > > but this doesn't: > SELECT name AS tempname, value FROM t1 GROUP BY name, value > HAVING value/AVG(value) > 0.75; > ERROR: Illegal use of aggregates or non-group column in target list > > Curiously, it's fine if the HAVING clause is omitted ... since name is > not mentioned in the HAVING clause, I don't see the connection ... > > 6.4.2 and current sources show the same behavior. > > regards, tom lane > > -- Bruce Momjian | http://www.op.net/~candle maillist@candle.pha.pa.us | (610) 853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania19026
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