A Transform is a single unit of data processing inside a Pipeline. Typical transform operations include reading from databases or files, filtering rows, calculating values, performing lookups, joining datasets, and loading to destinations. All transforms in a pipeline run simultaneously in parallel. Pipeline sources generate rows without needing an incoming hop, while intermediate transforms continuously process streaming rows and pass them along hops to downstream transforms through in-memory row buffers. See Transforms for where to find the page of each transform.