Обсуждение: Numeric Type Serial Range
Hi,
This describes the auto-incrementing behaviour, but in practice the range is -2147483648 to +2147483647 as the only restriction on the created column is NOT NULL.
I believe the range listed in Table 8-2. Numeric Types http://www.postgresql.org/docs/9.3/static/datatype-numeric.html is incorrect for the serial types.
E.g.
| serial | 4 bytes | autoincrementing integer | 1 to 2147483647 |
Tested on 9.3.10.
Regards,
Lewis Christie
On Tue, Nov 3, 2015 at 12:28 PM, Lewis Christie <lewis.christie@gmail.com> wrote:
I believe the range listed in Table 8-2. Numeric Types http://www.postgresql.org/docs/9.3/static/datatype-numeric.html is incorrect for the serial types.E.g.This describes the auto-incrementing behaviour, but in practice the range is -2147483648 to +2147483647 as the only restriction on the created column is NOT NULL.
serial 4 bytes autoincrementing integer 1 to 2147483647
I would believe that this refers to the default range of a serial column, which begins at 1 once the table using it is declared.
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Michael