Reset auto increment counter in postgres

The following command does this automatically for you: This will also delete all the data in the table. So be careful.

TRUNCATE TABLE someTable RESTART IDENTITY;

If you created the table product with an id column, then the sequence is not simply called product, but rather product_id_seq (that is, ${table}_${column}_seq).

This is the ALTER SEQUENCE command you need:

ALTER SEQUENCE product_id_seq RESTART WITH 1453

You can see the sequences in your database using the \ds command in psql. If you do \d product and look at the default constraint for your column, the nextval(...) call will specify the sequence name too.

Here is the command that you are looking for, assuming your sequence for the product table is product_id_seq:

ALTER SEQUENCE product_id_seq RESTART WITH 1453;