Apache Beam PTransform Explained

In Apache Beam, a PTransform is an abstract concept that represents a data transformation operation. PTransform can transform one or more input PCollections into one or more output PCollections. It can be a simple transformation operation, such as Map or Filter, or a complex operation like GroupByKey or Join.

PTransform is a fundamental building block in Apache Beam for constructing data processing pipelines. By combining multiple PTransforms together, complex data processing logic can be built. Beam offers a set of built-in PTransforms and also supports custom PTransforms to meet various data processing needs.