Re: OID vs SERIAL? (Was: Re: [HACKERS] Sequences....)

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От Bruce Momjian
Тема Re: OID vs SERIAL? (Was: Re: [HACKERS] Sequences....)
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Msg-id 199903180516.AAA24535@candle.pha.pa.us
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Ответ на Re: OID vs SERIAL? (Was: Re: [HACKERS] Sequences....)  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: OID vs SERIAL? (Was: Re: [HACKERS] Sequences....)  (Tom Lane <tgl@sss.pgh.pa.us>)
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> 
> I think it'd still be a good idea to have a system table containing the
> mapping from SERIAL columns to (OIDs of) their associated sequences.
> The atttypmod idea is just a trick to bypass having to do lookups in
> this table for the most common operations on a SERIAL column.

But what use would a new system table be, if the atttypmod can do it for
us?


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