Add a datatype that you wish to be packed into a single scalar numeric value.

If datatype is a packed datatype, return a pair of functions, unpacking-read and packing-write. unpacking-read reads the appropriate datatype and calls the datatype's unpack fn on it. packing-write packs the input and writes it to the appropriate place. Note that in this case those functions take the buffer and the index. returns {:unpacking-read :packing-write}

Pack a scalar, iterable, or a reader into a new scalar, iterable or a reader. If this isn't a packable datatype this is a no-op.

Returns the packed datatype for this unpacked datatype.

Pack a scalar value. Dtype is provided so nil can be packed.

Example:

tech.v3.datatype.packing> (pack-scalar nil :local-date)
-2147483648
tech.v3.datatype.packing> (pack-scalar (java.time.LocalDate/now) :local-date)
18775

Returns true of this is a datatype that could be unpacked.

If datatype is a packed datatype, return a pair of functions of the form pack-fn unpack-fn.

Unpack a scalar, iterable, or a reader. If the item is not a packed datatype this is a no-op.

Returns the unpacked datatype for this packed datatype.

Returns true if this is a datatype that could be packed.