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help / color / mirror / Atom feedFrom: David G. Johnston <[email protected]>
To: Andreas Joseph Krogh <[email protected]>
Cc: [email protected] <[email protected]>
Subject: Re: ORDER BY elements in ARRAY
Date: Tue, 27 Aug 2024 09:03:37 -0700
Message-ID: <CAKFQuwZRaJ4AHNQZgs6pNru_WGm5MOjH+mHa3dWELNS=N_4j6w@mail.gmail.com> (raw)
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On Tuesday, August 27, 2024, Andreas Joseph Krogh <[email protected]>
wrote:
> På tirsdag 27. august 2024 kl. 14:39:34, skrev David G. Johnston <
> [email protected]>:
>
> […]
> Add order by here
>
>> ) as person_array
>>
>> FROM onp_crm_relation comp
>> ORDER BY person_array
>> ;
>>
>>
> David J.
>
>
>
> This doesn't really do it. I'm looking for something analogous to Java's
> Comparator-interface so the custom datatype knows how to sort itself.
>
Ah. Then either just put those two values into the first two field
positions of your custom type and live with an easy, but also
self-contained, hack, or figure out what incantations of create operator
and/or create operator family are need to install custom behavior for the
b-tree < and > operators. I’m 80% sure it’s doable, 60% in plpgsql…
David J.
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Subject: Re: ORDER BY elements in ARRAY
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