Query Processing Events Category
The Query Processing event category has the event classes described in the following table.
Event Class | Event Id | Description |
---|---|---|
Query Subcube | 11 | Query subcube, for Usage Based Optimization. |
Query Subcube Verbose | 12 | Query subcube with detailed information. This event may have a negative impact on performance when turned on. |
Get Data From Aggregation | 60 | Answer query by getting data from aggregation. This event may have a negative impact on performance when turned on. |
Get Data From Cache | 61 | Answer query by getting data from one of the caches. This event may have a negative impact on performance when turned on. |
Query Cube Begin | 70 | Collects all Query Cube Begin events since the trace started. |
Query Cube End | 71 | Collects all Query Cube End events since the trace started. |
Calculate Non Empty Begin | 72 | Calculate non empty begin. |
Calculate Non Empty Current | 73 | Calculate non empty current. |
Calculate Non Empty End | 74 | Calculate non empty end. |
Serialize Results Begin | 75 | Serialize results begin. |
Serialize Results Current | 76 | Serialize results current. |
Serialize Results End | 77 | Serialize results end. |
Execute MDX Script Begin | 78 | Execute MDX script begin. |
Execute MDX Script Current | 79 | Execute MDX script current. |
Execute MDX Script End | 80 | Execute MDX script end. |
Query Dimension | 81 | Query dimension. |
VertiPaq SE Query Begin | 82 | Vertipaq storage engine query start time. |
VertiPaq SE Query End | 83 | Vertipaq storage engine query end time. |
For information about the columns associated with each of the Query Processing event classes, see Query Processing Events Data Columns.
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