Re: Porting MSSQL to PGSQL (Was: [OT] MySQL is bad, but THIS
От | Bruce Momjian |
---|---|
Тема | Re: Porting MSSQL to PGSQL (Was: [OT] MySQL is bad, but THIS |
Дата | |
Msg-id | 200605222039.k4MKdQc03420@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: Porting MSSQL to PGSQL (Was: [OT] MySQL is bad, but THIS ("Jim C. Nasby" <jnasby@pervasive.com>) |
Список | pgsql-hackers |
OK, I created a "trigger" section and moved "referential integrity" under "SQL commands". --------------------------------------------------------------------------- Jim C. Nasby wrote: > On Mon, May 22, 2006 at 03:11:14PM -0400, Bruce Momjian wrote: > > Martijn van Oosterhout wrote: > > -- Start of PGP signed section. > > > On Mon, May 22, 2006 at 10:41:59AM -0500, Jim C. Nasby wrote: > > > > > CREATE TRIGGER name { BEFORE | AFTER } { event [ OR ... ] } > > > > > ON table FOR EACH STATEMENT > > > > > EXECUTE PROCEDURE funcname ( arguments ) > > > > > > > > And that doesn't give you any information on the rows that were > > > > modified. Other RDBMSes will provide a NEW rowset and an OLD rowset that > > > > you can select from inside the trigger as if they were real tables. > > > > > > Is this on the TODO list? It doesn't seem too difficult to create a > > > tuplestore and store the NEW and OLD tuples there and pass the whole > > > set to the trigger. > > > > TODO has: > > > > * Allow statement-level triggers to access modified rows > > No wonder I missed it, it's under the RI section. :) > > Actually, it looks like there's a bunch of things in there that are > generic trigger issues and not really RI issues. And some of those are > exact duplicates of the triggers section... wee! > -- > Jim C. Nasby, Sr. Engineering Consultant jnasby@pervasive.com > Pervasive Software http://pervasive.com work: 512-231-6117 > vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461 > > ---------------------------(end of broadcast)--------------------------- > TIP 4: Have you searched our list archives? > > http://archives.postgresql.org > -- Bruce Momjian http://candle.pha.pa.us EnterpriseDB http://www.enterprisedb.com + If your life is a hard drive, Christ can be your backup. +
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