Re: column aliases
От | Bruce Momjian |
---|---|
Тема | Re: column aliases |
Дата | |
Msg-id | 200006080305.XAA10160@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: [HACKERS] column aliases (Zeugswetter Andreas SB <ZeugswetterA@wien.spardat.at>) |
Список | pgsql-hackers |
[ Charset ISO-8859-1 unsupported, converting... ] > > > >What it looks like to me is that we have a bug in the > > expansion of '*'. > > >It should be generating columns for both the explicit and > > the implicit > > >FROM clause, but it's evidently deciding that it should only produce > > >output columns for the first one. > > > > Yes, since it is joining the two tables it should be returning all > > columns of the join. > > > > >This may go a long way towards explaining why people have been so > > >readily confused by the implicit-FROM-clause business! > > > > It *is* confusing, that's for sure! > > IMHO, if there exists a from clause, we could insist, > that all tables are listed (no implicitly added table), > since it is really too error prone. Seems this is exactly what I implemented. > > What I would not like to see removed is the ability to > avoid the from clause alltogether. Like in: > > select xor.eval; > > Andreas > > ************ > -- 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, Pennsylvania19026
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