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From: Erik Rijkers <[email protected]>
To: Jonathan S. Katz <[email protected]>
To: PostgreSQL Advocacy <[email protected]>
Subject: Re: Feature matrix updates
Date: Sun, 17 Jul 2022 22:18:27 +0200
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

On 7/17/22 20:34, Jonathan S. Katz wrote:
> Hi,
> 
> Please see updates for the feature matrix in advance of the PostgreSQL 
> 15 release:
> 
> https://www.postgresql.org/about/featurematrix/
> 
> In addition to adding information about new features in PostgreSQL 
> 15[1][2], this version of the feature matrix adds additional  categories 
> including:
> 
> * Replication
> * JSON
> * Transactions and Visibility
> * VACUUM and Maintenance
> * Client Applications

Perhaps add one item for

   * Indexing & Constraints

to wit:

-----
"Allow unique constraints and indexes to treat NULL values as not 
distinct (Peter Eisentraut)

Previously NULL values were always indexed as distinct values, but this 
can now be changed by creating constraints and indexes using UNIQUE 
NULLS NOT DISTINCT."
-----


Erik








> This is to continue to reduce the amount of features kept in the 
> "Backend" section (and to a lesser extent, "Performance"), which 
> historically was used as a "catch all".
> 
> This also removed the "contrib/" prefix from all of the additional 
> modules listed in "Additional Modules".
> 
> Please let me know your thoughts on the PG15 bits and if there is 
> anything notable that is missing.
> 
> Thanks,
> 
> Jonathan
> 
> [1] https://www.postgresql.org/docs/15/release-15.html
> [2] 
> https://www.postgresql.org/about/news/postgresql-15-beta-1-released-2453/

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