DISTINCT term in aggregate function
| От | Pantelis Theodosiou |
|---|---|
| Тема | DISTINCT term in aggregate function |
| Дата | |
| Msg-id | CAE3TBxyiC0ivwhAVAeL8C8G6UUpyQ+WKUrEnRZ7LsE-LRXzR8A@mail.gmail.com обсуждение исходный текст |
| Ответы |
Re: DISTINCT term in aggregate function
|
| Список | pgsql-docs |
Hi, I didn't think of including you in this suggestion.
Hi Vik,
The patch seems quite ready, I have just two comments.
1) Shouldn't this add another <indexterm> for DISTINCT, somewhere in the
documentation? Now the index points just to the SELECT DISTINCT part.
.....
regards
--
Tomas Vondra
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
Or the pdsql-docs was not the right list to post? I didn't want to mix it with the GROUP BY DISTINCT patch.
Please check my suggestion.
Best regards
Pantelis Theodosiou
---------- Forwarded message ---------
From: Pantelis Theodosiou <ypercube@gmail.com>
Date: Sat, Mar 13, 2021 at 1:03 AM
Subject: Fwd: GROUP BY DISTINCT
To: <pgsql-docs@lists.postgresql.org>
From: Pantelis Theodosiou <ypercube@gmail.com>
Date: Sat, Mar 13, 2021 at 1:03 AM
Subject: Fwd: GROUP BY DISTINCT
To: <pgsql-docs@lists.postgresql.org>
---------- Forwarded message ---------
From: Tomas Vondra <tomas.vondra@enterprisedb.com>
Date: Fri, Mar 12, 2021 at 11:33 PM
Subject: Re: GROUP BY DISTINCT
To: Vik Fearing <vik@postgresfriends.org>, Georgios Kokolatos <gkokolatos@protonmail.com>, <pgsql-hackers@lists.postgresql.org>
Cc: Erik Rijkers <er@xs4all.nl>
From: Tomas Vondra <tomas.vondra@enterprisedb.com>
Date: Fri, Mar 12, 2021 at 11:33 PM
Subject: Re: GROUP BY DISTINCT
To: Vik Fearing <vik@postgresfriends.org>, Georgios Kokolatos <gkokolatos@protonmail.com>, <pgsql-hackers@lists.postgresql.org>
Cc: Erik Rijkers <er@xs4all.nl>
Hi Vik,
The patch seems quite ready, I have just two comments.
1) Shouldn't this add another <indexterm> for DISTINCT, somewhere in the
documentation? Now the index points just to the SELECT DISTINCT part.
.....
regards
--
Tomas Vondra
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
After reading the above thread in hackers, I noticed that the index does not point to aggrgeate functions either and DISTINCT is not mentioned in the aggregate functions page either: https://www.postgresql.org/docs/current/functions-aggregate.html
Shouldn't it be mentioned with an example of COUNT(DISTINCT ...) or aggregate_function(DISTINCT ...) in general ?
Best regards
Pantelis Theodosiou
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