Data types

The following table describes the correspondence of Cassandra column types with their equivalent Erlang types:

Cassandra Column Type	Erlang types	Examples
ascii	binary or string	<<"hello">> or "hello"
varchar	binary or string	<<"hello">> or "hello"
text	binary or string	<<"hello">> or "hello"
bigint	integer (signed 64-bit)	9223372036854775807
timestamp	integer (signed 64-bit)	9223372036854775807
counter	integer (signed 64-bit)	9223372036854775807
time	integer (signed 64-bit)	86399999999999
blob	binary	<<1,2,3,4,5,6,7,8,9,10>>
varint	binary	<<"12423423423423423423243432432">>
boolean	true, false	true
decimal	{Unscaled :: binary(), Scale :: integer()}	{<<"1234">>, 5}
double	float (signed 64-bit)	5.1235131241221e-6
float	float (signed 32-bit)	5.12351e-6
tinyint	integer (signed 8-bit)	127
smallint	integer (signed 16-bit)	32767
int	integer (signed 32-bit)	2147483647
date	integer (unsigned 32-bit)	2147483648
uuid	binary	<<"61c16fb1-44ca-4591-9317-ac96ddbd8694">>
varint	binary	<<"1928301970128391280192830198049113123">>
timeuuid	binary	<<"076a46c0-0ad7-11e5-b314-3d7bf89b87a1">>
inet	binary	<<"127.0.0.1">>
tuple	erlang tuple	{<<"aaa">>, 1}
udt	proplist	[{<<"key">>, <<"value">>}]

In order to generate a uuid v4 you can use erlcass_uuid:gen_random() for uuid v1 you can use erlcass_uuid:gen_time().