Module schema

Schema definition and management for Iceberg tables

This module provides the core schema functionality for Iceberg tables, including:

• Schema versioning and evolution
• Field definitions with unique IDs
• Required vs optional field specifications
• Schema builder patterns for constructing complex schemas
• Schema projection for selecting subsets of fields

The schema system is fundamental to Iceberg’s data model, providing:

• Type safety and validation
• Schema evolution capabilities
• Efficient field access via ID-based lookups
• Support for nested data structures

Structs

Schema

Names and types of fields in a table.

SchemaBuilder

SchemaV1

Names and types of fields in a table.

SchemaV2

Names and types of fields in a table.

Statics

DEFAULT_SCHEMA_ID