\set ECHO none
rv_predicate_matches|rv_compound_mean
t|5.000000
(1 row)
add_provenance

(1 row)
agg_predicate|agg_uncond
30.0000|15.0000
(1 row)
add_provenance

(1 row)
id|gate|p_cond
1|conditioned|0.8000
(1 row)
remove_provenance

(1 row)
remove_provenance

(1 row)
add_provenance

(1 row)
e_mixed_north
30.0000
(1 row)
ERROR:  ProvSQL: the conditioning operator | needs a predicate with at least one random_variable / aggregate comparison; a purely regular condition is an ordinary filter -- use a WHERE clause instead
remove_provenance

(1 row)