null is a Go library that provides nullable types for database operations.
The library addresses the challenge of handling NULL values from SQL databases in Go's type system. Go's built-in types cannot represent NULL states, forcing developers to use pointers or custom wrappers. null offers a dedicated solution by providing nullable type implementations that work seamlessly with Go's database/sql package and popular database drivers.
The tool is suited for Go applications that need to map database columns that may contain NULL values to strongly-typed Go structs without resorting to pointers or interface{} types. It has been tested against multiple database drivers including SQLite, PostgreSQL, and MySQL implementations, ensuring compatibility across common database systems. Developers working with code generation tools or those building database abstraction layers will find this particularly useful for maintaining type safety while preserving NULL semantics from the database layer.
The project maintains active engagement with the Go database driver ecosystem, drawing design inspiration from established drivers like pgx and considering integration patterns with the standard library's database/sql package. Development activity shows ongoing refinement of the nullable type implementations and continued testing against multiple database drivers to ensure broad compatibility.