Horton

Re: INSERT ... ON CONFLICT {UPDATE | IGNORE}

Alvaro Herrera <alvherre@2ndquadrant.com>

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From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Peter Geoghegan <pg@heroku.com>
Cc: Heikki Linnakangas <hlinnakangas@vmware.com>, Simon Riggs <simon@2ndquadrant.com>, Pg Hackers <pgsql-hackers@postgresql.org>, Craig Ringer <craig@2ndquadrant.com>
Date: 2014-09-26T22:11:05Z
Lists: pgsql-hackers 
Peter Geoghegan wrote:

> Can you really say that you won't have serious misgivings
> about something like the "tuple->xmin = InvalidTransactionId"
> swapping, if I actually formally propose it? That's very invasive to a
> lot of places. And right now, I have no idea how we could do better.

FWIW there are 28 callers of HeapTupleHeaderGetXmin.

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

Commits

  1. Change the way we mark tuples as frozen.

  2. Add documentation for data-modifying statements in WITH clauses.