GS_WLM_OPERATOR_STATISTICS¶
GS_WLM_OPERATOR_STATISTICS displays the operators of the jobs that are being executed by the current user.
Name | Type | Description |
---|---|---|
queryid | bigint | Internal query_id used for statement execution |
pid | bigint | ID of the backend thread |
plan_node_id | integer | plan_node_id of the execution plan of a query |
plan_node_name | text | Name of the operator corresponding to plan_node_id |
start_time | timestamp with time zone | Time when an operator starts to process the first data record |
duration | bigint | Total execution time of an operator. The unit is ms. |
status | text | Execution status of the current operator. Its value can be finished or running. |
query_dop | integer | DOP of the current operator |
estimated_rows | bigint | Number of rows estimated by the optimizer |
tuple_processed | bigint | Number of elements returned by the current operator |
min_peak_memory | integer | Minimum peak memory used by the current operator on all DNs. The unit is MB. |
max_peak_memory | integer | Maximum peak memory used by the current operator on all DNs. The unit is MB. |
average_peak_memory | integer | Average peak memory used by the current operator on all DNs. The unit is MB. |
memory_skew_percent | integer | Memory usage skew of the current operator among DNs |
min_spill_size | integer | Minimum spilled data among all DNs when a spill occurs. The unit is MB. The default value is 0. |
max_spill_size | integer | Maximum spilled data among all DNs when a spill occurs. The unit is MB. The default value is 0. |
average_spill_size | integer | Average spilled data among all DNs when a spill occurs. The unit is MB. The default value is 0. |
spill_skew_percent | integer | DN spill skew when a spill occurs |
min_cpu_time | bigint | Minimum execution time of the operator on all DNs. The unit is ms. |
max_cpu_time | bigint | Maximum execution time of the operator on all DNs. The unit is ms. |
total_cpu_time | bigint | Total execution time of the operator on all DNs. The unit is ms. |
cpu_skew_percent | integer | Skew of the execution time among DNs. |
warning | text | Warning. The following warnings are displayed:
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