Transformer
Interfaces
- Limiting
- Stateful
- Every run starts from a fresh instance; a parallel read never ships it to a worker.
Classes
- AddRowIndexTransformer
- CollectReferencesTransformer
- DerivedColumns
- DropColumnsTransformer
- DuplicateRowTransformer
- Expansion
- JoinEachRowsTransformer
- LimitTransformer
- PruneColumnsTransformer
- Unlike {@see SelectColumnsTransformer}, which throws when a reference is not declared by the schema, prune keeps what is there and silently skips absent references - pruned rows are spilled to storage, where the pruning is opportunistic rather than a contract.
- RenameColumnTransformer
- RenameEachColumnTransformer
- ScalarFunctionFilterTransformer
- ScalarFunctionTransformer
- SelectColumnsTransformer
- SerializedPayloadDecoder
- SerializeTransformer
- UnpackedColumns
- UnserializeTransformer
- UntilTransformer