CQL Keywords - Cassandra Query Language

CQL distinguishes between reserved and non-reserved keywords. Reserved keywords cannot be used as identifier, they are truly reserved for the language (but one can enclose a reserved keyword by double-quotes to use it as an identifier). Non-reserved keywords however only have a specific meaning in certain context but can used as identifer otherwise. The only raison d'être of these non-reserved keywords is convenience: some keyword are non-reserved when it was always easy for the parser to decide whether they were used as keywords or not.

Keyword	Reserved?
ADD	yes
ALL	no
ALTER	yes
AND	yes
ANY	yes
APPLY	yes
AS	no
ASC	yes
ASCII	no
AUTHORIZE	yes
BATCH	yes
BEGIN	yes
BIGINT	no
BLOB	no
BOOLEAN	no
BY	yes
CLUSTERING	no
COLUMNFAMILY	yes
COMPACT	no
CONSISTENCY	no
COUNT	no
COUNTER	no
CREATE	yes
DECIMAL	no
DELETE	yes
DESC	yes
DOUBLE	no
DROP	yes
EACH_QUORUM	yes
FLOAT	no
FROM	yes
GRANT	yes
IN	yes
INDEX	yes
CUSTOM	no
INSERT	yes
INT	no
INTO	yes
KEY	no
KEYSPACE	yes
LEVEL	no
LIMIT	yes
LOCAL_ONE	yes
LOCAL_QUORUM	yes
MODIFY	yes
NORECURSIVE	yes
NOSUPERUSER	no
OF	yes
ON	yes
ONE	yes
ORDER	yes
PASSWORD	no
PERMISSION	no
PERMISSIONS	no
PRIMARY	yes
QUORUM	yes
REVOKE	yes
SCHEMA	yes
SELECT	yes
SET	yes
STORAGE	no
SUPERUSER	no
TABLE	yes
TEXT	no
TIMESTAMP	no
TIMEUUID	no
THREE	yes
TOKEN	yes
TRUNCATE	yes
TTL	no
TWO	yes
TYPE	no
UPDATE	yes
USE	yes
USER	no
USERS	no
USING	yes
UUID	no
VALUES	no
VARCHAR	no
VARINT	no
WHERE	yes
WITH	yes
WRITETIME	no
DISTINCT	no