| From: | "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com> |
|---|---|
| To: | "kyle(at)lahnakoski(dot)com" <kyle(at)lahnakoski(dot)com>, "pgsql-bugs(at)lists(dot)postgresql(dot)org" <pgsql-bugs(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: BUG #17232: DISTINCT ON does not allow AS |
| Date: | 2021-10-15 23:01:08 |
| Message-ID: | CAKFQuwauxdgK=0gRiMUbMprcs83-NVgpZNvRkkNOKn_uF12Sjg@mail.gmail.com |
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| Lists: | pgsql-bugs |
On Friday, October 15, 2021, PG Bug reporting form <noreply(at)postgresql(dot)org>
wrote:
> The following bug has been logged on the website:
>
> Bug reference: 17232
> Logged by: Kyle Lahnakoski
> Email address: kyle(at)lahnakoski(dot)com
> PostgreSQL version: 14.0
> Operating system: windows
> Description:
>
> The following SQL has an unexpected syntax error
>
> SELECT DISTINCT ON (col) AS col, col2 FROM test
>
> The AS clause is usually used to indicate alias, but it does not work in
> this case
>
No it doesn’t. Why do you think it should? The columns in the ON parens
are not output so they don’t ned aliases.
David J.
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