Ghi
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Quyền truy cập vào trang này yêu cầu sự cho phép. Bạn có thể thử thay đổi thư mục.
Applies to: 
SQL Server 2016 (13.x) and later versions
Captures information about external PolyBase operations.
| Column Name | Data Type | Description | Range |
|---|---|---|---|
| execution_id | nvarchar(32) | Unique query identifier associated with PolyBase query | See ID in sys.dm_exec_requests (Transact-SQL) |
| step_index | int | Index of the query step | See step_index in sys.dm_exec_distributed_request_steps (Transact-SQL) |
| operation_ type | nvarchar(128) | Describes a Hadoop operation or other external operation | 'External Hadoop Operation' |
| operation_ name | nvarchar(4000) | Indicates how the status of job in percentage (how much is the input consumed) | 0-1 - multiplied by factor 100 (completed) |
| map_ progress | float | Indicates how the status of a reduce job in percentage, if any | 0-1 - multiplied by factor 100 (completed) |
See Also
PolyBase troubleshooting with dynamic management views
Dynamic Management Views and Functions (Transact-SQL)
Database Related Dynamic Management Views (Transact-SQL)