**Use case**

Viewing binary data such as bitmasks, hashes, internal representation of IEEE-754 numbers, etc.
Mostly for debugging.

**Describe the solution you'd like**

Similar to `hex`/`unhex`.

`bin` - returns a string with `0` and `1`. Bits are in "human" order, most significant first. Most significant zero bits are not printed (except the case with single zero).

**Describe alternatives you've considered**

Now I have to run interactive `python` from command line, but I will be more happy using ClickHouse.

**Caveats**

The name `bin` may suggest that the function will "split data into bins" but it is completely unrelated.
const auto * ipv6_zeroed_tail_bytes = checkAndGetColumnConst<ColumnVector<UInt8>>(col_ipv6_zeroed_tail_bytes.get());
            if (!ipv6_zeroed_tail_bytes)
                throw Exception("Illegal type " + col_ipv6_zeroed_tail_bytes_type.type->getName() +
                                " of argument 2 of function " + getName(),
                                ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
            UInt8 ipv6_zeroed_tail_bytes_count = ipv6_zeroed_tail_bytes->getValue<UInt8>();
            if (ipv6_zeroed_tail_bytes_count > IPV6_BINARY_LENGTH)
                throw Exception("Illegal value for argument 2 " + col_ipv6_zeroed_tail_bytes_type.type->getName() +
                                " of function " + getName(),
                                ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
            const auto * ipv4_zeroed_tail_bytes = checkAndGetColumnConst<ColumnVector<UInt8>>(col_ipv4_zeroed_tail_bytes.get());
            if (!ipv4_zeroed_tail_bytes)
                throw Exception("Illegal type " + col_ipv4_zeroed_tail_bytes_type.type->getName() +
                                " of argument 3 of function " + getName(),
                                ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
            UInt8 ipv4_zeroed_tail_bytes_count = ipv4_zeroed_tail_bytes->getValue<UInt8>();
            if (ipv4_zeroed_tail_bytes_count > IPV6_BINARY_LENGTH)
                throw Exception("Illegal value for argument 3 " + col_ipv4_zeroed_tail_bytes_type.type->getName() +
                                " of function " + getName(),
                                ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
            const auto size = col_in->size();
            const auto & vec_in = col_in->getChars();
            auto col_res = ColumnString::create();
            ColumnString::Chars & vec_res = col_res->getChars();
            ColumnString::Offsets & offsets_res = col_res->getOffsets();
            vec_res.resize(size * (IPV6_MAX_TEXT_LENGTH + 1));
            offsets_res.resize(size);
            auto * begin = reinterpret_cast<char *>(vec_res.data());
            auto * pos = begin;
            for (size_t offset = 0, i = 0; offset < vec_in.size(); offset += IPV6_BINARY_LENGTH, ++i)