query I
SELECT EXISTS(SELECT 1 FROM pg_tables WHERE tablename = 't');
----
t

query I
SELECT EXISTS(SELECT 1 from pg_indexes where indexname = 'i');
----
t

query I
SELECT COUNT(1) FROM (SELECT 1 FROM t ORDER BY val <-> '[0.5,0.5,0.5]' limit 10) t2;
----
10