Crate featherdb_core 

Core types and traits for FeatherDB

This crate provides the fundamental types used throughout FeatherDB:

• Value: The core data type for storing values
• Error: Error types for all database operations
• PageId, TransactionId: Type-safe identifiers
• ToRow, FromRow: Traits for type-safe row conversion
• WalSyncMode, WalGroupCommitConfig: WAL configuration for group commit
• TransactionConfig: Transaction timeout configuration
• Permissions: Table-level permission flags for authorization

Modules

constants

Constants for the database file format

Structs

ColumnDef

Column definition for schema generation

CompressionConfig

Compression configuration for the storage engine

Config

Database configuration options

Lsn

Log Sequence Number - identifies a position in the WAL

PageId

Page identifier - uniquely identifies a page in the database file

Permissions

Permission flags for table-level access control.

QueryContext

Query context for tracking position in SQL

QueryError

Rich query error with context and suggestions

StorageLimitsConfig

Configuration for database storage limits

TransactionConfig

Configuration for transaction behavior

TransactionId

Transaction identifier

WalGroupCommitConfig

WAL group commit configuration

Enums

ColumnType

Column type definition

CompressionType

Compression algorithm type for page compression

ConfigError

Configuration error type

EncryptionConfig

Encryption configuration

Error

Main error type for FeatherDB operations

EvictionPolicyType

Buffer pool eviction policy type

Value

A database value

WalSyncMode

WAL synchronization mode

Traits

FromRow

Trait for types that can be constructed from a database row

FromValue

Trait for types that can be created from a database Value

TableSchema

Trait for types that have a table schema

ToRow

Trait for types that represent a database row

ToValue

Trait for types that can be converted to a database Value

Functions

find_best_match

Find the best match from a list of candidates

levenshtein_distance

Calculate Levenshtein distance between two strings

suggest_keyword

Common SQL keyword typos and their corrections

Type Aliases

Result

Result type alias using FeatherDB’s Error