Re: mvcc.sgml make up

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От Tom Lane
Тема Re: mvcc.sgml make up
Дата
Msg-id 2562.1133817009@sss.pgh.pa.us
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Ответ на Re: mvcc.sgml make up  (Volkan YAZICI <volkan.yazici@gmail.com>)
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Volkan YAZICI <volkan.yazici@gmail.com> writes:
> On 12/5/05, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> SELECT * FROM foo WHERE col > 4;
>> SELECT * FROM foo WHERE col > 5;

> Ofcourse two different SELECT queries are (probably) gonna return
> different results. If this is the point you want to underline in the
> documentation, just rip that sentence off.

The point is that a row with (say) col = 10 might appear or disappear
or change between the two queries.  Whether the queries are formally
identical doesn't affect that.

            regards, tom lane

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