PG_RESOURCE_POOL
PG_RESOURCE_POOL provides information about database resource pools.
| Name | Type | Description |
|---|---|---|
| oid | oid | Row identifier (hidden attribute, which must be specified). |
| respool_name | name | Name of the resource pool. |
| mem_percent | integer | Percentage of the memory configuration. |
| cpu_affinity | bigint | Value of cores bound to the CPU. |
| control_group | name | Name of the Cgroup where the resource pool is located. |
| active_statements | integer | Maximum number of concurrent statements in the resource pool. |
| max_dop | integer | Maximum scanning concurrency during data redistribution. This column is used for scaling. |
| memory_limit | name | Maximum memory of the resource pool. |
| parentid | oid | OID of the parent resource pool. |
| io_limits | integer | Upper limit of I/O operations per second. It is counted by 10 thousands per second. |
| io_priority | name | I/O priority set for jobs that consume many I/O resources. It takes effect when I/O usage reaches 90%. |
| nodegroup | name | Name of the logical database to which the resource pool belongs. This column is not supported in the centralized system. |
| is_foreign | Boolean | Specifies whether the resource pool can be used for users outside the logical database. This column is not supported in the centralized system.
|
| max_worker | integer | Concurrency in a table during data redistribution. This column is used only for scaling. |
| max_connections | integer | Maximum number of connections that can be used by a resource pool. |
Note: max_dop and max_worker are used for scaling and are not applicable to the centralized deployment.