```sql

drop table if exists t ;
drop table if exists temp ;

CREATE TABLE t
(
    game String,
    round String,
    casino Int32)
ENGINE = MergeTree() ORDER BY (casino, game, round);

CREATE TABLE temp
(
    game String,
    round String,
    casino Int32)
ENGINE = MergeTree() ORDER BY (casino, game, round);

insert into t(casino, game, round)
select number%103, toString(cityHash64(number%999)), toString(number) from numbers(3, 50000000);

insert into temp(casino, game, round)
select number%103, toString(cityHash64(number%999)), toString(number) from numbers(5000);

Q1: SELECT count(*)
FROM temp WHERE (casino, game, round) NOT IN
(     SELECT  casino, game, round
    FROM t
    WHERE (casino, game, round) IN
    (
        SELECT casino, game, round
        FROM temp
    )
)

21.3.1.5944  Elapsed: 4.464 sec. Processed 5.00 thousand rows, 225.89 KB (1.12 thousand rows/s., 50.60 KB/s.)

20.8.11.17    Elapsed: 0.611 sec. Processed 5.00 thousand rows, 225.89 KB (8.18 thousand rows/s., 369.73 KB/s.)

18.14.19.    Elapsed: 0.341 sec. Processed 5.00 thousand rows, 225.89 KB (14.66 thousand rows/s., 662.46 KB/s.)

```
{
            auto it = window_descriptions.find(function_node->window_name);
            if (it == std::end(window_descriptions))
            {
                throw Exception(ErrorCodes::UNKNOWN_IDENTIFIER,
                    "Window '{}' is not defined (referenced by '{}')",
                    function_node->window_name,
                    function_node->formatForErrorMessage());
            }
            it->second.window_functions.push_back(window_function);
        }
        else
        {
            const auto & definition = function_node->window_definition->as<
                const ASTWindowDefinition &>();
            WindowDescription desc;
            desc.window_name = definition.getDefaultWindowName();
            makeWindowDescriptionFromAST(desc, &definition);
            auto [it, inserted] = window_descriptions.insert(
                {desc.window_name, desc});
            if (!inserted)
            {
                assert(it->second.full_sort_description
                    == desc.full_sort_description);
            }
            it->second.window_functions.push_back(window_function);
        }
    }
}
const ASTSelectQuery * ExpressionAnalyzer::getSelectQuery() const