| title | description | author | ms.author | ms.date | ms.service | ms.subservice | ms.topic | dev_langs | monikerRange | |
|---|---|---|---|---|---|---|---|---|---|---|
sys.dm_pdw_lock_waits (Transact-SQL) |
sys.dm_pdw_lock_waits (Transact-SQL) |
WilliamDAssafMSFT |
wiassaf |
03/07/2017 |
sql |
data-warehouse |
reference |
|
>=aps-pdw-2016||=azure-sqldw-latest |
[!INCLUDEapplies-to-version/asa-pdw]
Holds information about the requests that are waiting for locks.
Note
[!INCLUDEsynapse-analytics-od-unsupported-syntax]
| Column Name | Data Type | Description | Range |
|---|---|---|---|
| wait_id | bigint | Position of the request in the waiting list. | 0-based ordinal. This is not unique across all wait entries. |
| session_id | nvarchar(32) | ID of the session in which the wait state occurred. | See session_id in sys.dm_pdw_exec_sessions (Transact-SQL). |
| type | nvarchar(255) | Type of wait this entry represents. | Possible values: Shared SharedUpdate ExclusiveUpdate Exclusive |
| object_type | nvarchar(255) | Type of object that is affected by the wait. | Possible values: OBJECT DATABASE SYSTEM SCHEMA APPLICATION |
| object_name | nvarchar(386) | Name or GUID of the specified object that was affected by the wait. | Tables and views are displayed with three-part names. Indexes and statistics are displayed with four-part names. Names, principals, and databases are string names. |
| request_id | nvarchar(32) | ID of the request on which the wait state occurred. | ID of the request. This is a GUID for load requests. |
| request_time | datetime | Time at which the lock or resource was requested. | |
| acquire_time | datetime | Time at which the lock or resource was acquired. | |
| state | nvarchar(50) | State of the wait state. | [!INCLUDEssInfoNA] |
| priority | int | Priority of the waiting item. | [!INCLUDEssInfoNA] |
Azure Synapse Analytics and Parallel Data Warehouse Dynamic Management Views (Transact-SQL)