Delete duplicate rows from table with no unique key

Question

How do I delete duplicates rows in Postgres 9 table, the rows are completely duplicates on every field AND there is no individual field that could be used as a unique key so

Answer 1

You can try like this:

CREATE TABLE temp 
INSERT INTO temp SELECT DISTINCT * FROM discogs.releases_labels;
DROP TABLE discogs.releases_labels;
ALTER TABLE temp RENAME TO discogs.releases_labels;