Re: Read-Only Views?
От | scott.marlowe |
---|---|
Тема | Re: Read-Only Views? |
Дата | |
Msg-id | Pine.LNX.4.33.0307181136100.2444-100000@css120.ihs.com обсуждение исходный текст |
Ответ на | Read-Only Views? (Naomi Walker <nwalker@eldocomp.com>) |
Список | pgsql-admin |
Yep. by default views are not updateable in postgresql. However, they can be made updateable by triggers. Note that not all views are inherently updateable, just the simplest. for instance how would you update: create view bigview as select g1.id, t1.f1*t2.f2, t1.f3/t3.f4 from tabl1 t1, table2 t2, table3 t3 where t1.id=t2.t1id and t1.id=t3.t1id ? On Fri, 18 Jul 2003, Naomi Walker wrote: > > I noticed in some (older) documentation that views were read-only? Is this > still the case? > > Naomi > > > ------------------------------------------------------------------------------------------------------------------------- > Naomi Walker Chief Information Officer > Eldorado Computing, Inc. > nwalker@eldocomp.com 602-604-3100 > ------------------------------------------------------------------------------------------------------------------------- > Do not follow where the path may lead. Go, instead and leave a trail. > -Robert Frost > ------------------------------------------------------------------------------------------------------------------------- > > -- CONFIDENTIALITY NOTICE -- > > This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain informationthat is privileged, confidential and exempt from disclosure under applicable law. If you are not the intendedaddressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy,disclose or distribute to anyone the message or any information contained in the message. If you have received thismessage in error, please immediately advise the sender by reply email, and delete the message. Thank you. > > ---------------------------(end of broadcast)--------------------------- > TIP 9: the planner will ignore your desire to choose an index scan if your > joining column's datatypes do not match >
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