DLA支持云上大部分的数据源，相关支持的数据源不断优化，不支持的点可以提交工单，DLA团队将会快速响应；

RDS包括 MySQL、PG、SQLServer、Oracle关系型数据库，PolarDB跟RDS保持一致；

Data Source\ Feature SELECT INSERT INTO INSERT OVERWRITE CREATE TABLE LIKE MAPPING MSCK REPAIR DATABASE MSCK REPAIR TABLE ADD COLUMN
OSS ✓ ✓ ✓ ✓ ✓ ✓ ✓
RDS ✓ ✓ ✗ ✓ ✓ ✗ ✗
OTS ✓ ✓ ✗ ✗ ✓ ✗ ✓
ODPS ✓ ✓ ✗ ✓ ✓ ✗ ✗
ADB-MySQL 2.0 ✓ ✓ ✗ ✗ ✓ ✗ ✗
ADB-MySQL 3.0 ✓ ✓ ✓ ✗ ✓ ✗ ✗
ADB-PG ✓ ✓ ✓ ✗ ✓ ✗ ✗
MongoDB ✓ ✓ ✗ ✗ ✗ ✗ ✗
Redis ✓ ✓ ✗ ✓ ✓ ✗ ✗