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* DROP COLLATION vs pg_collation question
@ 2024-06-11 21:15 Karsten Hilbert <[email protected]>
2024-06-12 07:03 ` Re: DROP COLLATION vs pg_collation question Laurenz Albe <[email protected]>
0 siblings, 1 reply; 2+ messages in thread
From: Karsten Hilbert @ 2024-06-11 21:15 UTC (permalink / raw)
To: [email protected]
Dear list members,
maybe a naive question but I was unable to find an answer in
the fine manual (sv_SE being an example)
Does running
DROP COLLATION IF EXISTS pg_catalog."sv_SE"
also remove the corresponding row from pg_collation (assuming
nothing depends on collation sv_SE) ?
Experimentation seems to hint that way but I was unable to
confirm.
Thanks
Karsten
--
GPG 40BE 5B0E C98E 1713 AFA6 5BC0 3BEA AC80 7D4F C89B
^ permalink raw reply [nested|flat] 2+ messages in thread
* Re: DROP COLLATION vs pg_collation question
2024-06-11 21:15 DROP COLLATION vs pg_collation question Karsten Hilbert <[email protected]>
@ 2024-06-12 07:03 ` Laurenz Albe <[email protected]>
0 siblings, 0 replies; 2+ messages in thread
From: Laurenz Albe @ 2024-06-12 07:03 UTC (permalink / raw)
To: Karsten Hilbert <[email protected]>; [email protected]
On Tue, 2024-06-11 at 23:15 +0200, Karsten Hilbert wrote:
> maybe a naive question but I was unable to find an answer in
> the fine manual (sv_SE being an example)
>
> Does running
>
> DROP COLLATION IF EXISTS pg_catalog."sv_SE"
>
> also remove the corresponding row from pg_collation (assuming
> nothing depends on collation sv_SE) ?
>
> Experimentation seems to hint that way but I was unable to
> confirm.
Yes, that will delete a row from "pg_collation". System catalogs
like "pg_collation" is where the database metadata are actually
stored.
Note that with DROP COLLATION you can only remove collations
that belong to the encoding of your current database.
Yours,
Laurenz Albe
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