Re: Adding an extra boolean column to "information_schema.columns" or "pg_attribute"

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От GPT
Тема Re: Adding an extra boolean column to "information_schema.columns" or "pg_attribute"
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Msg-id CADep2PNqa=KBGQiQid0pEbN2QTimKpw+MpscvuoBbSz4LvaNxg@mail.gmail.com
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Ответ на Re: Adding an extra boolean column to "information_schema.columns" or "pg_attribute"  (Tom Lane <tgl@sss.pgh.pa.us>)
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I do not have any intention to persuade anyone. The time runs faster
than any committee!

My question was very clear because I do not know the Pg's internal and
I would like to zero the side (fatal) (if any) effect.

So please, if you really know, tell me if there will be any problem in
case I define my own nonstandard view.

Krgds

On 12/30/17, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> GPT <gptmailinglists@gmail.com> writes:
>> I would like to add an extra boolean attribute to table columns,
>
> The contents of the information_schema views are specified by the SQL
> standard (ISO 9075).  Since the entire point of having those views is to
> have a standard-conformant way of accessing the information in the system
> catalogs, adding nonstandard columns would rather defeat the purpose.
> If you can persuade the relevant ISO standards committee that this is a
> good idea, we will adopt the change when it appears in a published version
> of that standard --- otherwise, it seems quite unlikely that we'd accept
> a change to the view definition.
>
> You'd probably be better off to define your own nonstandard view, IMO.
>
>             regards, tom lane
>


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