Re: first time hacker ;) messing with prepared statements
От | Tom Lane |
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Тема | Re: first time hacker ;) messing with prepared statements |
Дата | |
Msg-id | 28827.1206911357@sss.pgh.pa.us обсуждение исходный текст |
Ответ на | Re: first time hacker ;) messing with prepared statements (Joris Dobbelsteen <joris@familiedobbelsteen.nl>) |
Ответы |
Re: first time hacker ;) messing with prepared statements
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Список | pgsql-hackers |
Joris Dobbelsteen <joris@familiedobbelsteen.nl> writes: > The MAJOR benefit of Microsoft's approach is that it works on existing > application, and, most importantly makes NO assumptions on the > "volatile" server state. A few cases where the Microsoft solution works, > while yours will fail is: > * Server restart and assorted like failover (you need to redo a > global prepare). Hmm? He's proposing storing the info in a system catalog. That hardly seems "volatile"; it'll certainly survive a server restart. > * Cleanup and instantiation of a prepared statement. Again, it's not clear what you've got in mind. I agree with the point that this isn't completely transparent to applications, but if an app is already using named prepared statements it would surely be a pretty small matter to make it use this feature. The app code would likely get simpler instead of more complex, since you'd stop worrying about whether a given statement had been prepared yet in the current session. regards, tom lane
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