I just noticed that I accidentally got a duplicate id. My definitions are here:
CREATE TABLE citations ( citation_id INTEGER PRIMARY KEY, source_fk INTEGER REFERENCES sources (source_id) ); CREATE TABLE relation_citations ( relation_fk INTEGER REFERENCES relations (relation_id) ) INHERITS (citations); ALTER TABLE relation_citations ADD CONSTRAINT source_relation_citation UNIQUE (source_fk, relation_fk); CREATE INDEX cit_relation_key ON relation_citations (relation_fk); CREATE TABLE event_citations ( event_fk INTEGER REFERENCES events (event_id) ) INHERITS (citations); ALTER TABLE event_citations ADD CONSTRAINT source_event_citation UNIQUE (source_fk, event_fk); CREATE INDEX cit_event_key ON event_citations (event_fk); And here is the accident: pgslekt=> insert into relation_citations values (64062,4578,20017); INSERT 1478990 1 pgslekt=> insert into relation_citations values (64062,4578,20018); INSERT 1478991 1 I got an error when I transferred the data to my Web database running MySQL: ERROR 1062 at line 19839 in file: 'ss_relation_citations.sql': Duplicate entry '64062' for key 1 How can this happen? -- Leif Biberg Kristensen | Registered Linux User #338009 http://solumslekt.org/ | Cruising with Gentoo/KDE ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend