Datatype

Function Name	Description
IS_BIGINT	Returns TRUE if the input expression is a big integer value.
IS_DATE	Returns TRUE if the input expression can be cast to a date.
IS_INT	Returns TRUE if the input expression is an integer value.
IS_VARCHAR	Returns TRUE if the input expression is a varchar value.
SIZE	Returns the number of entries in a map expression.
TYPEOF	Reports the type (in string format) of the input expression.