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04-12-2008, 02:03 AM
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 question regarding pg_database.h and DatabaseRelationId Hello all, Could someone explain the numbering logic in naming the relations? Why #define DatabaseRelationId 1262. I guess not being involved from the beginning has its disadvantages. but it is very exiting and fun trying to learn the internals by gdb and asking lots of questions  Regards, Gevik. ---------------------------(end of broadcast)--------------------------- TIP 1: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to majordomo@postgresql.org so that your message can get through to the mailing list cleanly      |
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04-12-2008, 02:03 AM
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| Re: question regarding pg_database.h and DatabaseRelationId Gevik Babakhani wrote: > Could someone explain the numbering logic in naming the relations? There is none. The numbers are presumably assigned in some lowest-available manner, but over the years it has become pretty random. -- Peter Eisentraut http://developer.postgresql.org/~petere/ ---------------------------(end of broadcast)--------------------------- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq |
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04-12-2008, 02:03 AM
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| Re: question regarding pg_database.h and DatabaseRelationId On Tue, Apr 18, 2006 at 12:45:27AM +0200, Peter Eisentraut wrote: > Gevik Babakhani wrote: > > Could someone explain the numbering logic in naming the relations? > > There is none. The numbers are presumably assigned in some > lowest-available manner, but over the years it has become pretty > random. In the src/include/catalog directory there are two scripts, unused_oids and duplicate_oids. When you need a new oid you run the unused_oids and pick one somewhere near the rows with similar meaning. The numbers are so all over the place that you may as well consider them random... -- Martijn van Oosterhout <kleptog@svana.org> http://svana.org/kleptog/ > Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a > tool for doing 5% of the work and then sitting around waiting for someone > else to do the other 95% so you can sue them. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFERJ/GIB7bNG8LQkwRAu0VAJ0RCXV0EDmpufGqH5lmqcIWn01DbQCfc wgi Ev4+1tFavAXWIM0ky1FowgA= =4ra1 -----END PGP SIGNATURE----- |
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