Re: ALTER TABLE lock strength reduction patch is unsafe

Alvaro Herrera <alvherre@commandprompt.com>

From: Alvaro Herrera <alvherre@commandprompt.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Robert Haas <robertmhaas@gmail.com>, Simon Riggs <simon@2ndquadrant.com>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2011-06-17T21:17:03Z
Lists: pgsql-hackers

Commits

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

  2. Fix ALTER TABLE ONLY .. DROP CONSTRAINT.

Excerpts from Tom Lane's message of vie jun 17 17:08:25 -0400 2011:
> Alvaro Herrera <alvherre@commandprompt.com> writes:
> > Hmm, would there be a problem if a scan on catalog A yields results from
> > supposedly-running transaction X but another scan on catalog B yields
> > result from transaction Y? (X != Y)  For example, a scan on pg_class
> > says that there are N triggers but scanning pg_trigger says N-1?
> 
> Yeah, I came to that same conclusion downthread.

Something is seriously wrong with my email :-(

-- 
Álvaro Herrera <alvherre@commandprompt.com>
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