\set ECHO none
add_provenance

(1 row)
create_provenance_mapping

(1 row)
remove_provenance

(1 row)
city|union_intervals
Berlin|{[04-12-2019,11-21-2019),[10-15-2020,02-02-2022)}
New York|{[07-10-2019,09-11-2019),[05-28-2020,12-06-2020),[01-15-2021,11-16-2022)}
Paris|{[07-15-2016,05-16-2017),[06-10-2017,10-26-2019),[12-01-2019,09-02-2021)}
(3 rows)
remove_provenance

(1 row)
city|union_intervals
Paris|{[02-10-2015,07-15-2016),[05-16-2017,06-10-2017),[10-26-2019,12-01-2019),[09-02-2021,08-16-2022)}
Berlin|{[10-05-2016,01-16-2018),[04-05-2018,04-12-2019),[11-21-2019,10-15-2020),[02-02-2022,05-29-2023)}
New York|{[03-20-2018,07-10-2019),[09-11-2019,05-28-2020),[12-06-2020,01-15-2021),[11-16-2022,03-23-2023)}
(3 rows)