Interstage Big DataComplex Event Processing Server V1.1.0 Developer's Reference

2.8.1 Function List

The table below lists the function provided by the High-speed Filter.

The table shows the format in which each function can be specified.

Type	Function name	Explanation	Return value (type)	Whether specifiable or not
				Search expression	Join-relational expression	Output item for lookup()	Output item for output()
String function	rtrim	Removes spaces from the end of a string	String	Y	-	-	-
	string	Converts to a standard format string	String	-	Y	Y	-
Numeric processing function	val	Fetches a numeric value	Numeric	Y	Y	Y	-
lookup function	lookup	Searches master items (without a third argument)	Boolean value	Y	-	-	-
		Searches master items (with a third argument)	Any	Y	-	-	-
	lookup_sum	Calculates the master item sum	Numeric	Y	-	-	Y
	lookup_count	Calculates the master item count	Numeric	Y	-	-	Y
Boolean function	true	Returns Boolean value (true)	Boolean value	Y	-	-	-
	false	Returns Boolean value (false)	Boolean value	Y	-	-	-

Y: Can be specified

-: Cannot be specified