After importing data in PostgreSQL, duplicate key value violates unique constraint

Question

I recently migrated my rails app to PostgreSQL in order to take advantage of fulltext search.

Since the migration coincided with moving to a new webhost, the steps for m

Answer 1

Another way is remove the primary key (id) from the columns (or don't dump the id). So your data would look like

INSERT INTO book (name, price) VALUES ('Alchemist' , 10);

instead of

INSERT INTO book (id, name, price) VALUES (1 , 'Alchemist' , 10);

This way, you won't have to reset the primary key after loading initial data