Re: Do we want a hashset type? - Mailing list pgsql-hackers

From Tomas Vondra
Subject Re: Do we want a hashset type?
Date
Msg-id 64c58f7e-86cc-390b-63b2-dc60ec5e8f83@enterprisedb.com
Whole thread Raw
In response to Re: Do we want a hashset type?  (Tomas Vondra <tomas.vondra@enterprisedb.com>)
List pgsql-hackers

On 6/20/23 14:10, Tomas Vondra wrote:
> ...
>
> This is also what the SQL standard does for multisets - there's SQL:20nn
> draft at http://www.wiscorp.com/SQLStandards.html, and the <member
> predicate> section (p. 475) explains how this should work with NULL.
> 

BTW I just notices there's also a multiset proposal at the wiscorp page:

   http://www.wiscorp.com/sqlmultisets.zip

It's just the initial proposal and I'm not sure how much it changed over
time, but it likely provide way more context for the choices than the
(rather dry) SQL standard.


regards

-- 
Tomas Vondra
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company



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