MySQL 源码解读 -- 基础结构之Schema

Schema

Schema 是接口函数, 依赖实现
class Schema : virtual public Entity_object {
}

Schema_impl

class Schema_impl : public Entity_object_impl, public Schema {
  // Fields
  ulonglong m_created;
  ulonglong m_last_altered;
  enum_encryption_type m_default_encryption;

  // The se_private_data column of a schema might be used by several storage
  // engines at the same time as the schema is not associated with any specific
  // engine. So to avoid any naming conflicts, we have the convention that the
  // keys should be prefixed with the engine name.
  Properties_impl m_se_private_data;

  // References to other objects
  Object_id m_default_collation_id;
}

Schemata

class Schemata : public Entity_object_table_impl {
    virtual Schema *create_entity_object(const Raw_record &) const;
    static Object_key *create_key_by_catalog_id(Object_id catalog_id);
    
}