ONLY
От | Chris Bitmead |
---|---|
Тема | ONLY |
Дата | |
Msg-id | 389E530C.7FA60CCA@nimrod.itg.telecom.com.au обсуждение исходный текст |
Ответы |
Re: [HACKERS] ONLY
Re: [HACKERS] ONLY |
Список | pgsql-hackers |
Been trying to read the SQL3 draft. My best guess is that this is the appropriate section... Let T be the table identified by <ANSI> <table name> <ISO > <table or query name> contained in a <table specification> TS. ... c) If ONLY is specified, then TS identifies a table fo the rows that do not have any corresponding row in any subtable of T. I assume this a round-about way of saying that "ONLY" is used to exclude subtables? BTW, I think in SQL3 the oid column is supposed to be called "IDENTITY". Maybe, but who can read this thing? (Can we find the people who wrote this document and have them taken out and flogged?).
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