EVERY
EVERY ( <boolean_expression> )
EVERY returns true if the supplied boolean_expression is true in all of the selected rows. Returns false if the supplied boolean_expression is false in any of the selected rows.
Example
The following SQL snippet returns 'true' if the price for every ticker in the stream of trades is below 1. Returns 'false' if any price is 1 or greater.
SELECT STREAM EVERY (price < 1) FROM trades GROUP BY (FLOOR trades.rowtime to hour)