Always reproduced:

```
milovidov-desktop :) create table table_map (a Map(String, String), b String) engine = MergeTree() order by a;

CREATE TABLE table_map
(
    `a` Map(String, String),
    `b` String
)
ENGINE = MergeTree
ORDER BY a

Query id: 8f8120c1-c165-452a-815f-2bcae3957e2a

Ok.

0 rows in set. Elapsed: 0.002 sec. 

milovidov-desktop :) SELECT b FROM table_map WHERE a = map('name', NULL, '', NULL)

SELECT b
FROM table_map
WHERE a = {'name', NULL, '', NULL}
```
bool useDefaultImplementationForConstants() const override { return true; }
    bool useDefaultImplementationForLowCardinalityColumns() const override { return false; }
    ColumnNumbers getArgumentsThatAreAlwaysConstant() const override { return {1}; }
private:
    WrapperType wrapper_function;
    const char * name;
    std::optional<Diagnostic> diagnostic;
};
struct NameCast { static constexpr auto name = "CAST"; };
enum class CastType
{
    nonAccurate,
    accurate,
    accurateOrNull
};
class FunctionCast final : public IFunctionBaseImpl
{
public:
    using WrapperType = std::function<ColumnPtr(ColumnsWithTypeAndName &, const DataTypePtr &, const ColumnNullable *, size_t)>;
    using MonotonicityForRange = std::function<Monotonicity(const IDataType &, const Field &, const Field &)>;
    using Diagnostic = ExecutableFunctionCast::Diagnostic;
    FunctionCast(const char * name_, MonotonicityForRange && monotonicity_for_range_