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ExpressionsFirst Method (String)

First-value (windowed) aggregation function.

Namespace:  com.espertech.esper.common.client.soda
Assembly:  NEsper.Common (in NEsper.Common.dll) Version: 8.0.0.0
Syntax
C#
public static FirstProjectionExpression First(
	string propertyName
)

Parameters

propertyName
Type: SystemString
name of the property providing the values to aggregate.

Return Value

Type: FirstProjectionExpression
expression
See Also