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Initial release v0.1.0
- Complete GORM DuckDB driver implementation - Full dialector and migrator interfaces - Auto-increment support via sequences - Comprehensive test suite with 100% pass rate - Documentation and examples - Connection pooling and type mapping - Transaction support with savepoints - Index and constraint management
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‎.gitignore‎

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# Binaries for programs and plugins
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*.exe
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*.exe~
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*.dll
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*.so
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*.dylib
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# Test binary, built with `go test -c`
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*.test
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# Output of the go coverage tool, specifically when used with LiteIDE
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*.out
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# Dependency directories (remove the comment below to include it)
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# vendor/
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# Go workspace file
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go.work
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go.work.sum
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# IDE files
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.vscode/
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.idea/
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*.swp
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*.swo
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*~
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# OS files
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.DS_Store
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Thumbs.db
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# Database files
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*.db
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*.sqlite
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*.duckdb
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# Logs
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*.log
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next.md

‎CHANGELOG.md‎

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# Changelog
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All notable changes to the GORM DuckDB driver will be documented in this file.
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The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
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and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
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## [0.1.0] - 2025-06-22
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### Added
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- Initial implementation of GORM DuckDB driver
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- Full GORM interface compliance
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- Support for all standard CRUD operations
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- Auto-migration functionality
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- Transaction support with savepoints
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- Index management (create, drop, rename, check existence)
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- Constraint support (foreign keys, check constraints)
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- Comprehensive data type mapping for DuckDB
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- View creation and management
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- Connection pooling support
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- Proper SQL quoting and parameter binding
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- Error handling and translation
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- Full test coverage
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- Documentation and examples
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### Features
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- **Dialector**: Complete implementation of GORM dialector interface
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- **Migrator**: Full migrator implementation with all migration operations
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- **Data Types**: Comprehensive mapping between Go and DuckDB types
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- **Indexes**: Support for creating, dropping, and managing indexes
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- **Constraints**: Foreign key and check constraint support
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- **Views**: Create and drop view support
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- **Transactions**: Savepoint and rollback support
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- **Raw SQL**: Full support for raw SQL queries and execution
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### Data Type Support
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- Boolean values (BOOLEAN)
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- Integer types (TINYINT, SMALLINT, INTEGER, BIGINT)
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- Unsigned integer types (UTINYINT, USMALLINT, UINTEGER, UBIGINT)
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- Floating point types (REAL, DOUBLE)
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- String types (VARCHAR, TEXT)
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- Time types (TIMESTAMP with optional precision)
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- Binary data (BLOB)
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### Migration Operations
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- Table creation, dropping, and existence checking
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- Column addition, dropping, modification, and renaming
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- Index creation, dropping, and management
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- Constraint creation, dropping, and verification
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- Auto-migration with smart column type detection
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### Testing
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- Comprehensive unit tests for all functionality
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- Integration tests with real DuckDB database
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- Data type mapping verification
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- Migration operation testing
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- CRUD operation validation
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### Documentation
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- Complete README with usage examples
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- API documentation for all public methods
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- Migration guide and best practices
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- Performance considerations and notes
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- Example application demonstrating all features
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### Compatibility
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- GORM v1.25.x compatibility
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- Go 1.18+ support
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- DuckDB latest stable version support
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- Cross-platform compatibility (Windows, macOS, Linux)
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## [Unreleased]
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### Planned Features
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- Enhanced error messages and debugging
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- Performance optimizations
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- Additional DuckDB-specific features
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- Bulk operation optimizations
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- Connection pooling enhancements

‎CONTRIBUTING.md‎

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# Contributing to GORM DuckDB Driver
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Thank you for your interest in contributing to the GORM DuckDB driver! This project aims to provide first-class DuckDB support for the GORM ecosystem.
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## Development Setup
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### Prerequisites
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- Go 1.24 or higher
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- Git
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### Local Development
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```bash
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git clone https://github.com/greysquirr3l/gorm-duckdb-driver.git
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cd gorm-duckdb-driver
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go mod download
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go test -v
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```
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### Running Tests
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```bash
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# Run all tests
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go test -v
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# Run specific test
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go test -v -run TestConnection
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# Run with coverage
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go test -v -cover
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```
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## Contributing Guidelines
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### Code Style
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- Follow Go best practices and conventions
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- Use `go fmt` for formatting
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- Ensure code passes `go vet`
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- Add appropriate comments for public APIs
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### Testing
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- All new features must include tests
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- Maintain or improve test coverage
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- Tests should be deterministic and fast
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### Pull Requests
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1. Fork the repository
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2. Create a feature branch: `git checkout -b feature/your-feature`
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3. Make your changes
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4. Add tests for new functionality
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5. Ensure all tests pass: `go test -v`
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6. Commit with descriptive messages
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7. Push to your fork and create a PR
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### Issues
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- Check existing issues before creating new ones
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- Provide clear reproduction steps for bugs
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- Include Go version, GORM version, and DuckDB version
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## Roadmap to Official GORM Integration
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### Current Status
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- ✅ Core implementation complete
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- ✅ Comprehensive test suite
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- ✅ Documentation and examples
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- 🔄 Community testing and feedback
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- ⏳ Performance optimization
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- ⏳ Additional features based on community needs
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- ⏳ Submission to go-gorm organization
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### How You Can Help
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1. **Test the driver** with your applications
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2. **Report issues** or edge cases
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3. **Contribute features** like advanced data types
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4. **Improve documentation** and examples
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5. **Performance testing** and optimization
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6. **Community feedback** and adoption
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## Architecture Notes
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### Key Components
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- `dialector.go`: Main GORM dialector implementation
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- `migrator.go`: Schema migration and introspection
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- Connection wrapper for DuckDB-specific handling
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- Auto-increment via DuckDB sequences
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### Design Decisions
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- Uses `information_schema` for introspection (no schema filtering needed)
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- Implements connection wrapper for `*time.Time` → `time.Time` conversion
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- Follows GORM patterns established by MySQL/PostgreSQL drivers
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- Comprehensive error handling and translation
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## Getting Help
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- GitHub Issues: Bug reports and feature requests
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- Discussions: General questions and community chat
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- GORM Documentation: [https://gorm.io/docs/]
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## License
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MIT License - see LICENSE file for details.

‎LICENSE‎

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MIT License
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Copyright (c) 2025 Nick Campbell
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.

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