Module error 

Unified Error Handling System for Linkrs

Design concepts

1. Boxed errors: All sub-errors are boxed to keep DBError small (~24 bytes instead of ~160 bytes)
2. Error classification: Each error has a class for unified handling strategies
3. Error chain: Full error chain support with source tracking
4. Public API: Stable error codes for external API, hiding internal details

Error Size Comparison

• Old design: ~160 bytes (embedded sub-errors)
• New design: ~24 bytes (boxed sub-errors)

Re-exports

pub use codes::ErrorCategory as CodeErrorCategory;

pub use codes::ErrorCode;

pub use codes::PublicError;

pub use codes::ToPublicError;

pub use manager::ErrorCategory;

pub use manager::ManagerError;

pub use manager::ManagerResult;

pub use query::PlanNodeVisitError;

pub use query::QueryError;

pub use query::QueryResult;

pub use storage::StorageError;

pub use storage::StorageResult;

pub use crate::types::DataType;

Modules

codes

Definition of external error codes

manager

Manager Error Type

query

Query layer error type

storage

Storage layer error type

Structs

DBError

Unified database error type

Enums

ErrorClass

Error classification for unified handling strategies

ErrorKind

Error kind enumeration for categorization

Type Aliases

BoxedError

Thread-safe boxed error type

DBResult

Harmonized result types

SharedError

Reference-counted error for cloning