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Re: foreign key locks

Alvaro Herrera <alvherre@2ndquadrant.com>

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From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Andres Freund <andres@2ndquadrant.com>
Cc: pgsql-hackers@postgresql.org
Date: 2012-11-14T16:27:26Z
Lists: pgsql-hackers 
Alvaro Herrera wrote:

> > * In heap_lock_tuple's  XMAX_IS_MULTI case
> > 
> > [snip]
> > 
> > why is it membermode > mode and not membermode >= mode?
> 
> Uh, that's a bug.  Fixed.  As noticed in the comment above that snippet,
> there was a deadlock possible here.  Maybe I should add a test to ensure
> this doesn't happen.

Done:
https://github.com/alvherre/postgres/commit/df2847e38198e99f57e52490e1e9391ebb70d770

(I don't think this is worth a v24 submission).

-- 
Álvaro Herrera                http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Fix memory leaks in record_out() and record_send().