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Applies to: 
SQL Server 2016 (13.x) and later
Azure SQL Managed Instance
Holds information about all SQL query distributions as part of a SQL step in the query. This view shows the data for the last 1000 requests; active requests always have the data present in this view.
| Column Name | Data Type | Description | Range |
|---|---|---|---|
| execution_id | nvarchar(32) | execution_id and step_index make up the key for this view. Unique numeric id associated with the request. | See ID in sys.dm_exec_requests (Transact-SQL) |
| step_index | int | Index of the query step this distribution is part of. | See step_index in sys.dm_exec_distributed_request_steps (Transact-SQL). |
| compute_node_id | int | Type of the operation represented by this step. | See compute_node_id in sys.dm_exec_compute_nodes (Transact-SQL). |
| distribution_id | int | Where the step is executing. | Set to -1 for requests that run at the node scope not the distribution scope. |
| status | nvarchar(32) | Status of this step | Active, Cancelled, Completed, Failed, Queued |
| error_id | nvarchar(36) | Unique id of the error associated with this step, if any | See id of sys.dm_exec_compute_node_errors (Transact-SQL), NULL if no error occurred. |
| start_time | datetime | Time at which the step started execution | Smaller or equal to current time and larger or equal to end_compile_time of the query to which this step belongs. |
| end_time | datetime | Time at which this step completed execution, was cancelled, or failed. | Smaller or equal to current time and larger or equal to start_time, set to NULL for steps currently in execution or queued. |
| total_elapsed_time | int | Total amount of time the query step has been executing, in milliseconds | Between 0 and the difference between end_time and start_time. 0 for queued steps. |
| row_count | bigint | Total number of rows changed or returned by this request | 0 for steps that did not change or return data, number of rows affected otherwise. Set to -1 for DMS steps. |
| spid | int | Session id on the SQL Server instance executing the query distribution | |
| command | nvarchar(4000) | Holds the full text of the command of this step. | Any valid request string for a step. Truncated if longer than 4000 characters. |
See Also
PolyBase troubleshooting with dynamic management views
Dynamic Management Views and Functions (Transact-SQL)
Database Related Dynamic Management Views (Transact-SQL)