Re: ALTER TABLE lock strength reduction patch is unsafe

Alvaro Herrera <alvherre@commandprompt.com>

From: Alvaro Herrera <alvherre@commandprompt.com>
To: Noah Misch <noah@leadboat.com>
Cc: Simon Riggs <simon@2ndquadrant.com>, Tom Lane <tgl@sss.pgh.pa.us>, Robert Haas <robertmhaas@gmail.com>, Bruce Momjian <bruce@momjian.us>, Pg Hackers <pgsql-hackers@postgresql.org>
Date: 2012-01-02T19:49:51Z
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 Noah Misch's message of lun ene 02 16:39:09 -0300 2012:
> 
> On Mon, Jan 02, 2012 at 04:33:28PM -0300, Alvaro Herrera wrote:

> > Uh, I thought detoasting had its own visibility test function .. I mean,
> > otherwise, what is HeapTupleSatisfiesToast for?
> 
> The SnapshotNow scan was actually to build the relcache entry for the toast
> table before scanning the toast table itself.  Stack trace:

Oh, right, that makes sense.

-- 
Álvaro Herrera <alvherre@commandprompt.com>
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