SQL 数据类型对象¶
类型层次结构
自定义类型
基本类型 API类型引擎TypeEngine.ComparatorTypeEngine.adapt()TypeEngine.as_generic()TypeEngine.bind_expression()TypeEngine.bind_processor()TypeEngine.coerce_compared_value()TypeEngine.column_expression()TypeEngine.comparator_factoryTypeEngine.compare_values()TypeEngine.compile()TypeEngine.dialect_impl()TypeEngine.evaluates_none()TypeEngine.get_dbapi_type()TypeEngine.hashableTypeEngine.literal_processor()TypeEngine.python_typeTypeEngine.render_bind_castTypeEngine.render_literal_castTypeEngine.result_processor()TypeEngine.should_evaluate_noneTypeEngine.sort_key_functionTypeEngine.with_variant()
可连接可索引NullType外部类型变体