Re: Is this still true?
От | Bruce Momjian |
---|---|
Тема | Re: Is this still true? |
Дата | |
Msg-id | 200006240248.WAA27202@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: Is this still true? (Mike Mascari <mascarm@mascari.com>) |
Список | pgsql-general |
> Bruce Momjian wrote: > > > > > http://www.postgresql.org/docs/faq-english.html#4.23 Is this a leftover > > > from previous versions of postgres or is this still true for 7.0? > > > > > > > Still true in 7.0. > > Gee. Shouldn't 4.24 use the advice above in 4.23? > > I.E., shouldn't it read: > > SELECT tab1.col1, tab2.col2 > FROM tab1, tab2 > WHERE tab1.col1 = tab2.col1 > UNION ALL > SELECT tab1.col1, NULL > FROM tab1 > WHERE tab1.col1 NOT EXISTS > (SELECT tab2.col1 FROM tab2 WHERE tab1.col1 = tab2.col1) > ORDER BY tab1.col1 Yes, but it seems too confusing to mix them. We really need both those features added to PostgreSQL. -- Bruce Momjian | http://www.op.net/~candle pgman@candle.pha.pa.us | (610) 853-3000 + If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania 19026
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