Version 1.2
SELECT * FROM SMAVG (
ON {table_name | view_name| (query) }
PARTITION BY partition_column
ORDER BY order_by_column
[ TargetColumns ({ 'target_column' | 'target_column_range' }[,...]) ]
[ IncludeFirst ({'true'|'t'|'yes'|'y'|'1'|'false'|'f'|'no'|'n'|'0'}) ]
[ WindowSize ('window_size') ]
);