set allow_experimental_json_type = 1; drop table if exists test; create table test (json JSON(a UInt32, max_dynamic_paths=2)) engine=Memory; insert into test values ('{"a" : 42, "b" : "Hello", "c" : [1, 2, 3], "d" : "2020-01-01", "e" : [{"f" : 42}]}'); insert into test values ('{"b" : "Hello", "c" : [1, 2, 3], "d" : "2020-01-01", "e" : [{"f" : 42}], "a" : 42}'); insert into test values ('{"c" : [1, 2, 3], "d" : "2020-01-01", "e" : [{"f" : 42}], "a" : 42, "b" : "Hello"}'); insert into test values ('{"d" : "2020-01-01", "e" : [{"f" : 42}], "a" : 42, "b" : "Hello", "c" : [1, 2, 3]}'); insert into test values ('{"e" : [{"f" : 42}], "a" : 42, "b" : "Hello", "c" : [1, 2, 3], "d" : "2020-01-01"}'); insert into test values ('{"a" : 42}'), ('{"b" : "Hello"}'), ('{"c" : [1, 2, 3]}'), ('{"d" : "2020-01-01"}'), ('{"e" : [{"f" : 42}]}'); insert into test values ('{"b" : "Hello"}'), ('{"c" : [1, 2, 3]}'), ('{"d" : "2020-01-01"}'), ('{"e" : [{"f" : 42}]}'), ('{"a" : 42}'); insert into test values ('{"c" : [1, 2, 3]}'), ('{"d" : "2020-01-01"}'), ('{"e" : [{"f" : 42}]}'), ('{"a" : 42}'), ('{"b" : "Hello"}'); insert into test values ('{"d" : "2020-01-01"}'), ('{"e" : [{"f" : 42}]}'), ('{"a" : 42}'), ('{"b" : "Hello"}'), ('{"c" : [1, 2, 3]}'); insert into test values ('{"e" : [{"f" : 42}]}'), ('{"a" : 42}'), ('{"b" : "Hello"}'), ('{"c" : [1, 2, 3]}'), ('{"d" : "2020-01-01"}'); insert into test values ('{"a" : 42}'); insert into test values ('{"b" : "Hello"}'); insert into test values ('{"c" : [1, 2, 3]}'); insert into test values ('{"d" : "2020-01-01"}'); insert into test values ('{"e" : [{"f" : 42}]}'); insert into test values ('{"a" : 42, "c" : "Hello", "d" : [1, 2, 3], "e" : "2020-01-01", "b" : [{"f" : 42}]}'); insert into test values ('{"c" : "Hello", "d" : [1, 2, 3], "e" : "2020-01-01", "b" : [{"f" : 42}], "a" : 42}'); insert into test values ('{"d" : [1, 2, 3], "e" : "2020-01-01", "b" : [{"f" : 42}], "a" : 42, "c" : "Hello"}'); insert into test values ('{"e" : "2020-01-01", "b" : [{"f" : 42}], "a" : 42, "c" : "Hello", "d" : [1, 2, 3]}'); insert into test values ('{"b" : [{"f" : 42}], "a" : 42, "c" : "Hello", "d" : [1, 2, 3], "e" : "2020-01-01"}'); insert into test values ('{"a" : 42}'), ('{"c" : "Hello"}'), ('{"d" : [1, 2, 3]}'), ('{"e" : "2020-01-01"}'), ('{"b" : [{"f" : 42}]}'); insert into test values ('{"c" : "Hello"}'), ('{"d" : [1, 2, 3]}'), ('{"e" : "2020-01-01"}'), ('{"b" : [{"f" : 42}]}'), ('{"a" : 42}'); insert into test values ('{"d" : [1, 2, 3]}'), ('{"e" : "2020-01-01"}'), ('{"b" : [{"f" : 42}]}'), ('{"a" : 42}'), ('{"c" : "Hello"}'); insert into test values ('{"e" : "2020-01-01"}'), ('{"b" : [{"f" : 42}]}'), ('{"a" : 42}'), ('{"c" : "Hello"}'), ('{"d" : [1, 2, 3]}'); insert into test values ('{"b" : [{"f" : 42}]}'), ('{"a" : 42}'), ('{"c" : "Hello"}'), ('{"d" : [1, 2, 3]}'), ('{"e" : "2020-01-01"}'); insert into test values ('{"a" : 42}'); insert into test values ('{"c" : "Hello"}'); insert into test values ('{"d" : [1, 2, 3]}'); insert into test values ('{"e" : "2020-01-01"}'); insert into test values ('{"b" : [{"f" : 42}]}'); select uniqExact(json) from test; select count(), json from test group by json order by toString(json); drop table test;