Comparison

The Comparison step runs a pre-configured comparison to find what matches — and what does
not — between two sets of records. It is the step behind reconciliation work: which patients in
this extract already exist, which appointments are missing, which records diverged.

Configure the comparison itself under Comparisons; this step runs it.

Configuration

Field	Notes
Comparison	The pre-configured comparison to run
Value / Value Type	The input records, supplied as a literal, a variable, or an earlier step's output
Return Records	Which side of the result you want — All, only Matched, or only Not Matched
Return Type	The output format: CSV, JSON, or Both
Delimiter	The field delimiter, for CSV output
Write to directory / File Destination	Write results to the Intely File System instead of holding them in the run
Collapse expressions	Combine expression results rather than reporting them separately
Evaluate expressions independently	Assess each expression on its own

Output

The comparison result, in the format you selected. Not Matched is usually the interesting
half — the records needing to be created downstream.

Notes

For large result sets, write to a directory rather than carrying the whole result through the
run, then process the file with Loop or a
Data Processor job.