Re: [SQL] table aliasing problem with 6.5...
От | Bruce Momjian |
---|---|
Тема | Re: [SQL] table aliasing problem with 6.5... |
Дата | |
Msg-id | 199909280135.VAA21707@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: [SQL] table aliasing problem with 6.5... (Tom Lane <tgl@sss.pgh.pa.us>) |
Список | pgsql-sql |
> Bruce Momjian <maillist@candle.pha.pa.us> writes: > > OK, I have added an elog(NOTICE) for this behavior: > > > test=> select * from pg_language; > > lanname |lanispl|lanpltrusted|lanplcallfoid|lancompiler > > --------+-------+------------+-------------+-------------- > > internal|f |f | 0|n/a > > lisp |f |f | 0|/usr/ucb/liszt > > C |f |f | 0|/bin/cc > > sql |f |f | 0|postgres > > (4 rows) > > > test=> select pg_language.*; > --> NOTICE: Auto-creating query reference to table pg_language > > lanname |lanispl|lanpltrusted|lanplcallfoid|lancompiler > > --------+-------+------------+-------------+-------------- > > internal|f |f | 0|n/a > > lisp |f |f | 0|/usr/ucb/liszt > > C |f |f | 0|/bin/cc > > sql |f |f | 0|postgres > > (4 rows) > > > I am interested in comments about my wording, and this behavour. > > I think this is a fine idea, but that wording might not be much help > to novices. Maybe "Adding missing FROM-clause entry for pg_language", > or some such? Yes, I like that much better. Let me make the change. > In a situation where you've got subselects, it may not be immediately > obvious which FROM list the entry got added to. I can't think of any > simple way of identifying that, however :-( -- 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
В списке pgsql-sql по дате отправления: