Re: Putting index entries to XLog
От | Simon Riggs |
---|---|
Тема | Re: Putting index entries to XLog |
Дата | |
Msg-id | 1267530447.20134.9712.camel@ebony обсуждение исходный текст |
Ответ на | Putting index entries to XLog (Carsten Kropf <ckropf2@fh-hof.de>) |
Список | pgsql-general |
On Thu, 2010-02-25 at 12:41 +0100, Carsten Kropf wrote: > I have encountered a problem while implementing an index structure. I don't have any access to the RM (I don't know, howto set it up properly) using my index. However, when I don't have the situation of working with a temporary table, I needto put entries using XLogInsert(...). The problem for me is, that based on the fact, that I don't have the access tothe RM, I can't put proper entries to the xlog facility. How can I achieve that my index structure can be stored properlyat least? > I'm getting lots of errors, when I just put a XLogRecPtr with data {1,1} as LSN of the page. On the other hand when doingXLogInsert calls to work with the component properly I don't know which data to put in there. When I'm using some kindof RM_ID (like RM_GIST_ID or something like that) I'm getting problems because I don't know which code to insert there.I decided to take RM_GIST_ID and an invalid code (so it won't call any of the xlog gist implementations upon recovery)which, however failed, too. Unfortunately my task is to implement a certain structure with PostgreSQL, so all ofmy current work actually depend on this action. > I hope that somebody will be able to help me according to this issue. > Thanks in advance Each new index type requires a new rmgr to allow it to be recoverable. The rmgr is not part of the index API, so it is not currently possible to add a new index type *and* make it recoverable without editing the server source code. -- Simon Riggs www.2ndQuadrant.com
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