goyaladitay11 opened a new pull request, #74225:
URL: https://github.com/apache/airflow/pull/74225
closes: #74195
Description
Adds explicit Delta table version observation to the Databricks provider as
Phase 1 of #74195.
Key additions:
- UnityTableIdentity`**: Dataclass representing a static Unity Catalog table
identity with validation and conversion to Airflow Asset (`to_asset()`).
- DatabricksDeltaTableVersionSensor`: Sensor that queries Delta history
(`DESCRIBE HISTORY {table_name} LIMIT 1`), detects new version commits, records
provenance into XCom and Asset event `extra` metadata, and supports automatic
asset outlet declaration.
- DatabricksDeltaTableVersionTrigger`: Trigger providing deferrable async
polling with bounded backoff.
- Supports initial enrollment (capturing current version as baseline on
first poke), `target_version`, and `allow_recreation` handling for tables
dropped and recreated.
- Documented usage, parameters, and reproducibility note under
`providers/databricks/docs/operators/delta_table_sensor.rst`.
- Registered sensor and trigger in `provider.yaml` and
`get_provider_info.py`.
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