QuakeWang opened a new pull request, #501:
URL: https://github.com/apache/paimon-rust/pull/501
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### Purpose
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Persistent `DROP VIEW` was delegated to DataFusion, whose Paimon catalog
deregistration path only handles tables. As a result, REST Catalog views could
not be dropped through `SQLContext`.
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### Brief change log
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they address the issue -->
- Add `drop_view` support to the Catalog and REST API layers.
- Handle persistent Paimon `DROP VIEW [IF EXISTS]` in `SQLContext`.
- Preserve DataFusion delegation for non-Paimon catalogs.
- Validate unsupported modifiers and normalize SQL identifiers.
- Add REST, catalog, SQL, and error-handling tests.
### Tests
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- `cargo fmt --all -- --check`
- `cargo clippy --all-targets --workspace --features fulltext,vortex -- -D
warnings`
- `cargo test -p paimon --all-targets --features fulltext,vortex`
- Focused REST Catalog and DataFusion `DROP VIEW` tests
### API and Format
<!-- Does this change affect API or storage format -->
Adds `Catalog::drop_view`. No storage format changes.
### Documentation
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updates -->
Updates the DataFusion README and SQL documentation.
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