Apama 10.3.1 | Apama Documentation | Developing Apama Applications | Developing Apama Applications in EPL | Working with Streams and Stream Queries | Defining stream queries | IEEE special values in stream query expressions
 
IEEE special values in stream query expressions
The following information about IEEE special values applies to the following expressions:
*The key expression in a with unique clause
*A partition by expression
*The expressions that define the conditions in a join clause
*A group by expression
If one of these expressions is a decimal or float value, or a container that involves a decimal or float value, and the decimal or float value is an IEEE special value, then the following applies:
*NaN — This value is illegal as all or part of an expression and terminates the monitor instance.
*Positive/negative infinity — These values are legal and all positive infinities are treated as equal as are all negative infinities.

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