**Describe the bug**
Under certain conditions the equals comparison between String and Date yields the wrong result. Range Comparisons with greather-than-equals returns the correct result set.

**How to reproduce**
* Which ClickHouse server version to use: 21.2.5.5 (latest at the time of this issue)
* Which interface to use, if matters: HTTP (but should not matter)

```sql
CREATE TABLE default.myTable (
	myDay Date,
	myOrder Int32,
	someData String
) 
ENGINE = ReplacingMergeTree
PARTITION BY floor(toYYYYMMDD(myDay), -1)
ORDER BY (myOrder)
;

INSERT INTO default.myTable (myDay, myOrder) VALUES ('2021-01-01', 1);
INSERT INTO default.myTable (myDay, myOrder) VALUES ('2021-01-02', 2); // This row should be returned
INSERT INTO default.myTable (myDay, myOrder) VALUES ('2021-01-03', 3);

SELECT * FROM default.myTable mt
WHERE myDay = '2021-01-02';
```

**Expected behavior**
The last query in the example should yield the marked row. Instead it returns a empty result set.

There must be a connection to the used `PARTITION KEY`. The issue fails to reproduce as soon as I do any changes to the `PARTITION KEY` setting.

while (!chain.empty())
                {
                    const auto * func = chain.top();
                    chain.pop();
                    if (func->type != ActionsDAG::ActionType::FUNCTION)
                        continue;
                    if (func->children.size() == 1)
                    {
                        std::tie(out_value, out_type) = applyFunctionForFieldOfUnknownType(func->function_builder, out_type, out_value);
                    }
                    else if (func->children.size() == 2)
                    {
                        const auto * left = func->children[0];
                        const auto * right = func->children[1];
                        if (left->column && isColumnConst(*left->column))
                        {
                            auto left_arg_type = left->result_type;
                            auto left_arg_value = (*left->column)[0];
                            std::tie(out_value, out_type) = applyBinaryFunctionForFieldOfUnknownType(
                                    func->function_builder, left_arg_type, left_arg_value, out_type, out_value);
                        }
                        else
                        {
                            auto right_arg_type = right->result_type;
                            auto right_arg_value = (*right->column)[0];
                            std::tie(out_value, out_type) = applyBinaryFunctionForFieldOfUnknownType(
                                    func->function_builder, out_type, out_value, right_arg_type, right_arg_value);
                        }
                    }
                }