Method initSource

src/Functions/array/arrayElement.cpp:70–74

    bool operator!() const { return !(is_mysql || src_null_map); }

    void initSource(const UInt8 * src_null_map_, bool is_mysql_)
    {
        src_null_map = src_null_map_;
        is_mysql = is_mysql_;
    }

    /// pass the index null map to check if the index is 0 or null.
    /// if the index is null, the result is null