Re: someone working to add merge?
От | Josh Berkus |
---|---|
Тема | Re: someone working to add merge? |
Дата | |
Msg-id | 200511110909.45366.josh@agliodbs.com обсуждение исходный текст |
Ответ на | someone working to add merge? (Jaime Casanova <systemguards@gmail.com>) |
Ответы |
Re: someone working to add merge?
Re: someone working to add merge? Re: someone working to add merge? |
Список | pgsql-hackers |
Jaime, > so i suppose we can reuse many of the code breaking the merge in 3 > pieces... for now they are just thougths, i will think more in this > and try to implement it... > > comments? ideas? suggestions? Funny, we were just discussing this at OpenDBCon. Seems that you can't do a full implementation of MERGE without Predicate Locking (the ability to say "lock this table against inserts or updates of any row with key=5"). However, Peter suggested that we could do a proof-of-concept implementation, working out syntax and trigger issues, based on a full table lock and do the hard work once it was proved to be feasable. Peter? -- Josh Berkus Aglio Database Solutions San Francisco
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