Re: Portals and nested transactions
От | Zeugswetter Andreas SB SD |
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Тема | Re: Portals and nested transactions |
Дата | |
Msg-id | 46C15C39FEB2C44BA555E356FBCD6FA40184D148@m0114.s-mxs.net обсуждение исходный текст |
Ответ на | Portals and nested transactions (Tom Lane <tgl@sss.pgh.pa.us>) |
Список | pgsql-hackers |
My answers: > Q1: Should Portals successfully created within the failed subxact > be closed? Or should they remain open? no for protocol level I can understand a yes to this one for sql level, because it will be hard to clean up by hand :-( But I like the analogy to hold cursors, so I would also say no to sql level. Is the pro yes argument ACID allowed here ? I thought ACID is about data integrity and not flow control, and also deals with main transactions and not subtransactions. > Q2: If the subxact changed the state of a pre-existing Portal, should > that state change roll back? In particular, can a Close Portal > operation roll back? NO for both SQL and protocol level. The analogy is imho that closing a 'hold cursor' is also never rolled back > How to do it non-transactionally > -------------------------------- Sounds like a good plan, but also sounds like a lot of work. Andreas
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