Reset-postgres-primary-key-sequence

gistfile1.txt

Useful when inserting rows into postres (like when seeding data from a .sql dump) messes up the database.


http://stackoverflow.com/questions/244243/how-to-reset-postgres-primary-key-sequence-when-it-falls-out-of-sync

// Login to psql and run the following
// What is the result?
SELECT MAX(id) FROM your_table;

// Then run...
// This should be higher than the last result.
SELECT nextval('your_table_id_seq');

// If it's not higher... run this set the sequence last to your highest pid it. 
// (wise to run a quick pg_dump first...)
SELECT setval('your_table_id_seq', (SELECT MAX(id) FROM your_table));