Horton

Re: storing an explicit nonce

Bruce Momjian <bruce@momjian.us>

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From: Bruce Momjian <bruce@momjian.us>
To: Stephen Frost <sfrost@snowman.net>
Cc: Antonin Houska <ah@cybertec.at>, Andres Freund <andres@anarazel.de>, Robert Haas <robertmhaas@gmail.com>, Alvaro Herrera <alvherre@alvh.no-ip.org>, Masahiko Sawada <sawada.mshk@gmail.com>, Tom Kincaid <tomjohnkincaid@gmail.com>, Amit Kapila <amit.kapila16@gmail.com>, Thomas Munro <thomas.munro@gmail.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>, Masahiko Sawada <masahiko.sawada@2ndquadrant.com>
Date: 2021-05-26T20:42:22Z
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. Rethink method for assigning OIDs to the template0 and postgres DBs.

  2. pg_upgrade: Preserve database OIDs.

  3. pg_upgrade: Preserve relfilenodes and tablespace OIDs.

  4. Fix for new Boolean node

  5. Improve error handling of HMAC computations

  6. Add macro RelationIsPermanent() to report relation permanence

  7. Enhance nbtree index tuple deletion.

On Wed, May 26, 2021 at 03:49:43PM -0400, Stephen Frost wrote:
> Greetings,
> 
> * Bruce Momjian (bruce@momjian.us) wrote:
> > OK, that's what I thought.  We already expose the clog and fsm, so
> > exposing the hint bits seems acceptable.  If everyone agrees, I will
> > adjust my patch to not WAL log hint bit changes.
> 
> Robert pointed out that it's not just hint bits where this is happening
> though, but it can also happen with btree line pointer arrays.  Even if
> we were entirely comfortable accepting that the hint bits are leaked
> because of this, leaking the btree line pointer array doesn't seem like
> it could possibly be acceptable..
> 
> I've not run down that code myself, but I don't have any reason to doubt
> Robert's assessment.

OK, I guess we could split out log_hints to maybe just FPW-log btree
changes or something, but my recent email questions why wal_log_hints is
an issue anyway.

-- 
  Bruce Momjian  <bruce@momjian.us>        https://momjian.us
  EDB                                      https://enterprisedb.com

  If only the physical world exists, free will is an illusion.