On Thu, Aug 24, 2006 at 06:21:01PM +0200, Harald Armin Massa wrote: > with a normal "serial", without "big", you can have > 9.223.372.036.854.775.807 records individually numbered. Not true; see the documentation: http://www.postgresql.org/docs/8.1/interactive/datatype.html#DATATYPE-SERIAL "The type names serial and serial4 are equivalent: both create integer columns. The type names bigserial and serial8 work just the same way, except that they create a bigint column. bigserial should be used if you anticipate the use of more than 2^31 identifiers over the lifetime of the table." I think you're confusing the size of the sequence (always 64 bits) with the size of the column (32-bit integer for serial, 64-bit bigint for bigserial) that will hold the sequence's value. -- Michael Fuhr
