Creste Index with nullable

[Diego <diego@xxxxxxxxxxxxxxxxx>]

Hi,

I have a question!

create table test (
  code int not null,
  name varchar(40) not null,
  last_name varchar(40)    {this field is nullable}
)

I can create a index like
"CREATE INDEX idx_test  ON etqmov  USING btree  (name, last_name)"
using a nullable field? Will work fine?

Thanks...
Diego Ziquinatti
From Brazil