spark支持的sql 语法

• from http://docs.datastax.com/en/latest-dse/datastax_enterprise/spark/sparkSqlSupportedSyntax.html
• ALL
• AND
• AS
• ASC
• APPROXIMATE
• AVG
• BETWEEN
• BY
• CACHE
• CAST
• COUNT
• DESC
• DISTINCT
• FALSE
• FIRST
• LAST
• FROM
• FULL
• GROUP
• HAVING
• IF
• IN
• INNER
• INSERT
• INTO
• IS
• JOIN
• LEFT
• LIMIT
• MAX
• MIN
• NOT
• NULL
• ON
• OR
• OVERWRITE
• LIKE
• RLIKE
• UPPER
• LOWER
• REGEXP
• ORDER
• OUTER
• RIGHT
• SELECT
• SEMI
• STRING
• SUM
• TABLE
• TIMESTAMP
• TRUE
• UNCACHE
• UNION
• WHERE
• INTERSECT
• EXCEPT
• SUBSTR
• SUBSTRING
• SQRT
• ABS