This is a UTF16 database

I have a very strange problem when using COLLATE NOCASE on a column.
It seems that when I do a SELECT the WHERE clause is only looking at the first letter.

CREATE TABLE words (
word TEXT COLLATE NOCASE NOT NULL CHECK(word <> ''),
);

INSERT INTO words (word) VALUE ('aw');

SELECT * FROM WORDS WHERE word = 'a'

returns ALL rows that being with 'a'

I might add that using sqlite3.exe produces the correct result.