Re: CREATE TABLE LIKE and SERIAL

> On Fri, Oct 30, 2009 at 8:44 AM, Mark Morgan Lloyd
> <markMLl.pgsql-general@telemetry.co.uk> wrote:
>> What is the "correct" behavior of a serial column when a table is created
>> with LIKE? The manual is silent on this.
>>
>> What appears to be happening with 8.2 is that the column in the new table
>> refers to the original sequence generator.
>>
>> --
>> Mark Morgan Lloyd
>> markMLl .AT. telemetry.co .DOT. uk
>>
>> [Opinions above are the author's, not those of his employers or colleagues]
>>
>> --
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silly8888 wrote:
 > In 8.4, the sequence value is copied only when INCLUDING DEFAULTS is
 > specified. Otherwise, only the not null constraint is copied. I think
 > this is the most reasonable behavior and I don't see why it should
 > have been explicitly stated in the manual.

I didn't say the sequence value, I said the sequence itself. After all
the normal usage will be where the "pattern" table is empty.

In other words the newly-created table is not completely decoupled from
the pattern, the sequence is a shared resource and this is irrespective
of any including/excluding specification.

--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk

[Opinions above are the author's, not those of his employers or colleagues]