charlespnh opened a new issue, #35769:
URL: https://github.com/apache/beam/issues/35769
### What happened?
```
pipeline:
type: chain
transforms:
- type: Create
name: CreateSampleData
config:
elements:
- { id: 1, log_message: "Error in module A" }
- { id: 2, log_message: "Warning in module B" }
- { id: 3, log_message: "Info in module C" }
- type: MLTransform
name: Preprocessing
config:
write_artifact_location: "./tmp"
transforms:
- type: SentenceTransformerEmbeddings
config: { model_name: all-MiniLM-L6-v2, columns: [ log_message ]
}
- type: MapToFields
name: MapToFieldsAfterEmbedding
config:
language: python
fields:
id:
expression: id
output_type: integer
log_message:
expression: log_message
output_type:
type: array
items:
type: number
- type: LogForTesting
```
... gives the following error at MapToFields transform:
```
ValueError: Error applying transform "MapToFieldsAfterEmbedding" at line 96:
Can only use expressions on a schema'd input.
```
For downstream transforms such as MapToFields or WriteToBigQuery, it
requires the output from MLTransform to be schema'd.
### Issue Priority
Priority: 2 (default / most bugs should be filed as P2)
### Issue Components
- [ ] Component: Python SDK
- [ ] Component: Java SDK
- [ ] Component: Go SDK
- [ ] Component: Typescript SDK
- [ ] Component: IO connector
- [x] Component: Beam YAML
- [ ] Component: Beam examples
- [ ] Component: Beam playground
- [ ] Component: Beam katas
- [ ] Component: Website
- [ ] Component: Infrastructure
- [ ] Component: Spark Runner
- [ ] Component: Flink Runner
- [ ] Component: Samza Runner
- [ ] Component: Twister2 Runner
- [ ] Component: Hazelcast Jet Runner
- [ ] Component: Google Cloud Dataflow Runner
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: github-unsubscr...@beam.apache.org.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
