必需文件
- active_record/connection_adapters/abstract_adapter
- active_record/connection_adapters/statement_pool
- active_record/connection_adapters/sqlite3/column
- active_record/connection_adapters/sqlite3/explain_pretty_printer
- active_record/connection_adapters/sqlite3/quoting
- active_record/connection_adapters/sqlite3/database_statements
- active_record/connection_adapters/sqlite3/schema_creation
- active_record/connection_adapters/sqlite3/schema_definitions
- active_record/connection_adapters/sqlite3/schema_dumper
- active_record/connection_adapters/sqlite3/schema_statements
- sqlite3
命名空间