This article summarizes all items of PolarDB for PostgreSQL Standard Edition.
Billable items
| Billable item | What you pay for | Pricing factors | Billing methods | Details |
|---|---|---|---|---|
| Compute nodes | Primary nodes and read-only nodes in your cluster | Region, node specifications, usage duration | Pay-as-you-go, Subscription | Billing rules for compute nodes |
| Storage space | Files such as data files, index files, log files (online and archived logs), and temporary files | Region, amount of provisioned storage, storage duration | Pay-as-you-go, Subscription | Billing rules for storage space |
| Backup storage | Storage capacity used by backup files, beyond the free quota | Storage capacity used, retention period | Pay-as-you-go | Billing rules for backup storage (usage that exceeds the free quota) |
| SQL Explorer (optional) | Audit log storage for security audits and performance diagnostics | Storage capacity, retention period of audit logs | Pay-as-you-go | Billing rules for SQL Explorer (Optional) |
Billing methods
| Billing method | How it works | Best for | Available items |
|---|---|---|---|
| Pay-as-you-go | Billed by actual usage with no upfront commitment | Short-term, variable, or unpredictable workloads | All four billable items |
| Subscription | Prepay for a fixed period at a lower rate compared to pay-as-you-go | Long-running, steady-state workloads where cost predictability matters | Compute nodes and storage space only |
Backup storage and SQL Explorer support pay-as-you-go billing only.