postgresql - integer out of range

Question

Not the slightest idea why the hell this is happening..

I\'ve set up a table accordingly:

CREATE TABLE raw (
    id          SERIAL,
    regtime     floa         


        

Answer 1

SERIAL columns are stored as INTEGERs, giving them a maximum value of 2³¹-1. So after ~2 billion inserts, your new id values will no longer fit.

If you expect this many inserts over the life of your table, create it with a BIGSERIAL (internally a BIGINT, with a maximum of 2⁶³-1).

If you discover later on that a SERIAL isn't big enough, you can increase the size of an existing field with:

ALTER TABLE raw ALTER COLUMN id TYPE BIGINT;

Note that it's BIGINT here, rather than BIGSERIAL (as serials aren't real types). And keep in mind that, if you actually have 2 billion records in your table, this might take a little while...