ClickHouse/tests/queries/0_stateless/01592_length_map.sql

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set allow_experimental_map_type = 1;
select length(map(1,2,3,4));
select length(map());
select empty(map(1,2,3,4));
select empty(map());
select notEmpty(map(1,2,3,4));
2021-01-26 13:19:13 +00:00
select notEmpty(map());