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From: David G. Johnston <[email protected]>
To: Phani Prathyush Somayajula <[email protected]>
Cc: Pgsql-admin <[email protected]>
Cc: [email protected] <[email protected]>
Cc: pgAdmin Support <[email protected]>
Subject: Re: Assign User Defined DataType To Columns
Date: Wed, 2 Aug 2023 09:42:20 -0700
Message-ID: <CAKFQuwYXZF7dnmOk2_EPx0aYx-ND8-iJeQG=ioyu24mfRiK-mg@mail.gmail.com> (raw)
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On Wed, Aug 2, 2023 at 9:24 AM Phani Prathyush Somayajula <
[email protected]> wrote:

> Hi All,
>
>
>
> I’ve a user defined data type as :
>
> CREATE TYPE uibackend."_operation" (
>

If you find yourself writing user-space code that uses "_{data type}" you
are doing something wrong.  That implementation detail is not something
that is exposed to the user.  If you want to deal with arrays of a type you
say:  {data type}[]

So casting some random text column to an array of operation is simply:

operation_text_col::operation[]

And you can get rid of the above CREATE TYPE command altogether.

David J.


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