The ProcessDataIdExtractor for extracting only Id values extracts only the Ids of all the qualified process instances. It is recommended to use the extractor in combination with:
ProcessDataPurger, which is configured to purge the extracted data.
This extractor extracts only the Ids of Process Instances to avoid occupying a lot of memory by loading the entire graph of all qualified process instances. During process data extraction, along with process instance Ids, instance data field (dataslot) table name is also extracted and passed to Data Purger to enable purging of data fields.
ProcessDataPurger, which is configured to purge the extracted data.