[This topic is pre-release documentation and is subject to change in future releases. Blank topics are included as placeholders.]
Result-set processor for the aggregate-grouped case:
there is a group-by and one or more non-aggregation event properties in the select clause are not listed in the group by,
and there are aggregation functions.
This processor does perform grouping by computing MultiKey group-by keys for each row.
The processor generates one row for each event entering (new event) and one row for each event leaving (old event).
Aggregation state is a table of rows held by ${AggregationService} where the row key is the group-by MultiKey.
Namespace: net.esper.eql.core
Assembly:
NEsper (in NEsper.dll)
Syntax
Visual Basic (Declaration) |
---|
Public Class ResultSetProcessorAggregateGrouped _
Implements ResultSetProcessor |
Inheritance Hierarchy
System.Object net.esper.eql.core.ResultSetProcessorAggregateGrouped