Alvaro Herrera escribió:

> Simon's explanation, however, is at odds with the code.
> 
> http://git.postgresql.org/?p=postgresql.git;a=blob;f=src/backend/storage/lmgr/lwlock.c
> 
> There is "queue jumping" in the regular (heavyweight) lock manager, but
> that's a pretty different body of code.

I'll just embarrass myself by pointing out that Neil Conway described
this back in 2004:
http://archives.postgresql.org//pgsql-hackers/2004-11/msg00905.php

So Simon's correct.

-- 
Alvaro Herrera                                http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.

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