Re: Building infrastructure for B-Tree deduplication that recognizes when opclass equality is also equivalence

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Peter Geoghegan <pg(at)bowt(dot)ie>
Cc: Anastasia Lubennikova <a(dot)lubennikova(at)postgrespro(dot)ru>, Antonin Houska <ah(at)cybertec(dot)at>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Building infrastructure for B-Tree deduplication that recognizes when opclass equality is also equivalence
Date: 2020-01-02 17:37:13
Message-ID: CA+TgmoZ7kZFQfyzwwquJfM9tcm2=9CWAO-ZbAjbd9T5Pe1eJfQ@mail.gmail.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

On Thu, Jan 2, 2020 at 12:11 PM Peter Geoghegan <pg(at)bowt(dot)ie> wrote:
> The difference between datum_image_eq() and datumIsEqual() is that
> only the former will consider two datums equal when they happen to
> have different TOAST input states -- we need that here.

Ah, OK. Sorry for the noise.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

In response to

Browse pgsql-hackers by date

  From Date Subject
Next Message Tom Lane 2020-01-02 17:37:26 Re: Clarifying/rationalizing Vars' varno/varattno/varnoold/varoattno
Previous Message Andrey Borodin 2020-01-02 17:26:16 Re: Disallow cancellation of waiting for synchronous replication