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The MANUFACTURER_ID port in the Aggregator transformation links to the IN_MANUFACTURER_ID port in the Lookup transformation. The Lookup transformation uses the following lookup condition:
MANUFACTURER_ID = IN_MANUFACTURER_ID
You change the datatype of the MANUFACTURER_ID port from integer to decimal in the Aggregator transformation. You choose to parse conditions to infer dependencies, and then propagate the datatype change. The Designer performs the following tasks:
Updates link path dependencies.
The Designer updates the ports in the link path, changing the datatype of the IN_MANUFACTURER_ID port in the Lookup transformation to decimal.
Identifies dependent ports.
The Designer parses the lookup condition and identifies the MANUFACTURER_ID port in the Lookup transformation as a dependent port.
Updates implicit dependencies.
The Designer changes the datatype of the MANUFACTURER_ID port in the Lookup transformation to decimal.