Re: Add Missing From?
От | Bruce Momjian |
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Тема | Re: Add Missing From? |
Дата | |
Msg-id | 200408101500.i7AF0Qq15552@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: Add Missing From? (Tom Lane <tgl@sss.pgh.pa.us>) |
Ответы |
Re: Add Missing From?
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Список | pgsql-hackers |
Tom Lane wrote: > Bruce Momjian <pgman@candle.pha.pa.us> writes: > > There is no way to specify a table alias for the deleted table in > > the DELETE WHERE clause because there is no FROM clause. > > This description confuses two quite separate issues. Yea, it does. How is this text: * Allow DELETE to handle table aliases for self-joins There is no way to create a table alias for the deleted table for use in the DELETE WHERE clause. The agreed approach isto allow a USING clause to specify additional tables. UPDATE already has an optional FROM clause for this purpose. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001+ If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania19073
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