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Aggregate: Count

Streaming aggregator that emits the number of times it has received a value so far. Reset at the start of every parser execution. Useful inside an iterator body to compute COUNT across rows.

Example
Inputs:  any, any, any
Outputs: 1, 2, 3

Parameters​

This function has no parameters.

Input​

Valuerequired

Any value — only its arrival increments the counter.

Output​

Number

Total number of values received so far (connector key count).