\set ECHO none remove_provenance (1 row) city|prob Berlin|0.54 New York|0.26 Paris|0.41 (3 rows) remove_provenance (1 row) name|city|shapley Ellen|Berlin|0.093 Susan|Berlin|0.264 John|New York|0.037 Paul|New York|0.080 Dave|Paris|0.056 Magdalen|Paris|0.113 Nancy|Paris|0.156 (7 rows)