\set ECHO none
add_provenance

(1 row)
remove_provenance

(1 row)
region|p_independent|p_worlds|certified
A|0.750000|0.750000|1
B|0.437500|0.437500|1
(2 rows)
remove_provenance

(1 row)
remove_provenance

(1 row)
region|p_independent|p_worlds|certified
A|0.750000|0.750000|1
B|0.437500|0.437500|1
(2 rows)
remove_provenance

(1 row)
remove_provenance

(1 row)
region|p_independent|p_worlds|certified
A|0.500000|0.500000|0
B|0.437500|0.437500|1
(2 rows)
remove_provenance

(1 row)
add_provenance

(1 row)
remove_provenance

(1 row)
region|p_worlds
A|0.437500
(1 row)
remove_provenance

(1 row)
remove_provenance

(1 row)
remove_provenance

(1 row)