parisni opened a new pull request, #802:
URL: https://github.com/apache/incubator-xtable/pull/802
## Important Read
- Please ensure the GitHub issue is mentioned at the beginning of the PR
## What is the purpose of the pull request
This pull request adds Databricks Unity Catalog (DATABRICKS_UC) catalog
sync support to XTable, with a new xtable-databricks module, UC config wiring,
UC sync client
implementation, and documentation updates.
## Brief change log
- Added new xtable-databricks module + ServiceLoader wiring.
- Added DatabricksUnityCatalogConfig and DatabricksUnityCatalogSyncClient
(DDL-based UC registration).
- Implemented UC sync methods: hasDatabase, createDatabase, getTable,
createTable, createOrReplaceTable, dropTable, refreshTable.
- Added UC-specific unit tests for all catalog sync methods.
- Documented Databricks UC sync flow, auth (OAuth M2M), limitations
(Delta-only, unique location), and schema evolution strategy (drop/recreate).
## Verify this pull request
This change added tests and can be verified as follows:
- Added TestDatabricksUnityCatalogSyncClient in xtable-databricks.
- Run:
- mvn -Drat.skip=true -Dspotless.skip=true
-Dtest=TestDatabricksUnityCatalogSyncClient -pl xtable-databricks test
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