Re: Transaction-controlled robustness for replication
От | Bruce Momjian |
---|---|
Тема | Re: Transaction-controlled robustness for replication |
Дата | |
Msg-id | 200808121648.m7CGm8g20181@momjian.us обсуждение исходный текст |
Ответ на | Re: Transaction-controlled robustness for replication (Simon Riggs <simon@2ndquadrant.com>) |
Список | pgsql-hackers |
Simon Riggs wrote: > > What is the attraction of logical application of the WAL logs? > > Transmitting to a server with different architecture? > > Yes, > > * different release > * different encoding > * different CPU architecture > * (with the correct transform) a different DBMS > > So logical apply can provide a route for data transfer between > applications, not just replication for DR or HA. > > Physical apply works and will be more performant, but it will always be > more restrictive. So there are arguments for doing it both ways. > > I believe that we can and should offer both options to provide customer > choice. Ideally, it would be nice to be able to switch between the two > without significant reconfiguration, but that's definitely not for this > release. I assume you are focusing on physical first, becuase that is easiest. -- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + If your life is a hard drive, Christ can be your backup. +
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