What type of expressions can be used in an Aggregator transformation variable port?
Aggregate or Non-Aggregate expressions, provided they are not used together in a single variable port.
Aggregate and Non-Aggregate expressions, together in the same variable port.
Aggregate, Non-Aggregate and conditional expressions, together in the same variable port, provided that the variable port is also made a ‘group-by’ port.
In an Informatica Aggregator transformation, variable ports can only contain non-aggregate and conditional expressions. They cannot contain aggregate functions (such as SUM or AVG) because variable ports are evaluated row-by-row.