This page lists the main features of Cloud SQL and indicates which database engines support these features. The checkmarks in Table 1 contain links to related topics. **Table 1. Cloud SQL features** | | | **MySQL** | **PostgreSQL** | **SQL Server** | |---|---|---|---|---| | **Data protection** | Backups | [✓](https://docs.cloud.google.com/sql/docs/mysql/backup-recovery/backups.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/postgres/backup-recovery/backups.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/sqlserver/backup-recovery/backups.md.txt) | | | Point-in-time recovery (PITR) | [✓](https://docs.cloud.google.com/sql/docs/mysql/backup-recovery/restore.md.txt#tips-pitr) | [✓](https://docs.cloud.google.com/sql/docs/postgres/backup-recovery/restore.md.txt#tips-pitr) | [✓](https://docs.cloud.google.com/sql/docs/sqlserver/backup-recovery/restore.md.txt#tips-pitr) | | | High availability | [✓](https://docs.cloud.google.com/sql/docs/mysql/high-availability.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/postgres/high-availability.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/sqlserver/high-availability.md.txt) | | | Cloning | [✓](https://docs.cloud.google.com/sql/docs/mysql/clone-instance.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/postgres/clone-instance.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/sqlserver/clone-instance.md.txt) | | | Disaster recovery | [✓](https://docs.cloud.google.com/architecture/intro-to-cloud-sql-disaster-recovery) | [✓](https://docs.cloud.google.com/architecture/intro-to-cloud-sql-disaster-recovery) | [✓](https://docs.cloud.google.com/architecture/intro-to-cloud-sql-disaster-recovery) | | **Data migration** | Data migration to external servers | [✓](https://docs.cloud.google.com/sql/docs/mysql/migrate-data.md.txt) | | | | **Logs** | Instance logging | [✓](https://docs.cloud.google.com/sql/docs/mysql/logging.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/postgres/logging.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/sqlserver/logging.md.txt) | | **Planned maintenance** | Maintenance windows | [✓](https://docs.cloud.google.com/sql/docs/mysql/maintenance.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/postgres/maintenance.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/sqlserver/maintenance.md.txt) | | | Maintenance controls | [✓](https://docs.cloud.google.com/sql/docs/mysql/maintenance.md.txt#maintenance-notifications) | [✓](https://docs.cloud.google.com/sql/docs/postgres/maintenance.md.txt#maintenance-notifications) | [✓](https://docs.cloud.google.com/sql/docs/sqlserver/maintenance.md.txt#maintenance-notifications) | | | Self service maintenance | [✓](https://docs.cloud.google.com/sql/docs/mysql/self-service-maintenance.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/mysql/self-service-maintenance.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/mysql/self-service-maintenance.md.txt) | | **Replication** | Read replicas | [✓](https://docs.cloud.google.com/sql/docs/mysql/replication.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/postgres/replication.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/sqlserver/replication.md.txt) | | | Cross-region read replicas | [✓](https://docs.cloud.google.com/sql/docs/mysql/replication.md.txt#cross-region-read-replicas) | [✓](https://docs.cloud.google.com/sql/docs/postgres/replication.md.txt#cross-region-read-replicas) | [✓](https://docs.cloud.google.com/sql/docs/sqlserver/replication.md.txt#cross-region-read-replicas) | | | External read replicas | [✓](https://docs.cloud.google.com/sql/docs/mysql/replication/configure-external-replica.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/postgres/replication/configure-external-replica.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/sqlserver/replication/configure-external-replica.md.txt) | | | Binary logging on read replicas | [✓](https://docs.cloud.google.com/sql/docs/mysql/replication.md.txt#bin-log-replica) | | | | | Replication from an external server | [✓](https://docs.cloud.google.com/sql/docs/mysql/replication/external-server.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/postgres/replication/external-server.md.txt) | | | | Read replica indexes stored procedures | [✓](https://docs.cloud.google.com/sql/docs/mysql/replication/read-replica-indexes.md.txt) | | | | | Logical replication | | [✓](https://docs.cloud.google.com/sql/docs/postgres/replication/configure-logical-replication.md.txt) | | | **Security** | Customer-managed encryption keys (CMEK) | [✓](https://docs.cloud.google.com/sql/docs/mysql/cmek.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/postgres/cmek.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/sqlserver/cmek.md.txt) | | | Cloud SQL Auth Proxy support | [✓](https://docs.cloud.google.com/sql/docs/mysql/sql-proxy.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/postgres/sql-proxy.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/sqlserver/sql-proxy.md.txt) | | | Audit logging | [✓](https://docs.cloud.google.com/sql/docs/mysql/audit-logging.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/postgres/audit-logging.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/sqlserver/audit-logging.md.txt) | | | Connection organization policies | [✓](https://docs.cloud.google.com/sql/docs/mysql/connection-org-policy) | [✓](https://docs.cloud.google.com/sql/docs/postgres/connection-org-policy) | [✓](https://docs.cloud.google.com/sql/docs/sqlserver/connection-org-policy) | | | IAM database authentication | [✓](https://docs.cloud.google.com/sql/docs/mysql/authentication) | [✓](https://docs.cloud.google.com/sql/docs/postgres/authentication) | | | | Access Transparency (AXT) | [✓](https://docs.cloud.google.com/assured-workloads/access-transparency/docs/overview.md.txt#overview) | [✓](https://docs.cloud.google.com/assured-workloads/access-transparency/docs/overview.md.txt#overview) | [✓](https://docs.cloud.google.com/assured-workloads/access-transparency/docs/overview.md.txt#overview) | | | Key Access Justification | [✓](https://docs.cloud.google.com/assured-workloads/key-access-justifications/docs/overview.md.txt) | [✓](https://docs.cloud.google.com/assured-workloads/key-access-justifications/docs/overview.md.txt) | [✓](https://docs.cloud.google.com/assured-workloads/key-access-justifications/docs/overview.md.txt) | | | Private Service Connect | [✓](https://docs.cloud.google.com/sql/docs/mysql/about-private-service-connect.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/postgres/about-private-service-connect.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/sqlserver/about-private-service-connect.md.txt) | | | Cloud Security Command Center Monitoring | [✓](https://docs.cloud.google.com/security-command-center/docs/security-command-center-overview.md.txt) | [✓](https://docs.cloud.google.com/security-command-center/docs/security-command-center-overview.md.txt) | [✓](https://docs.cloud.google.com/security-command-center/docs/security-command-center-overview.md.txt) | | | Cloud External Key Manager (EKM) | [✓](https://docs.cloud.google.com/kms/docs/ekm.md.txt) | [✓](https://docs.cloud.google.com/kms/docs/ekm.md.txt) | [✓](https://docs.cloud.google.com/kms/docs/ekm.md.txt) | | | VPC Service Controls | [✓](https://docs.cloud.google.com/sql/docs/mysql/admin-api/configure-service-controls.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/postgres/admin-api/configure-service-controls.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/sqlserver/admin-api/configure-service-controls.md.txt) | | **Insights** | Query Insights | [✓](https://docs.cloud.google.com/sql/docs/mysql/using-query-insights.md.txt) | [✓](https://docs.cloud.google.com/sql/docs/postgres/using-query-insights.md.txt) | |