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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 SE query

VertiPaq SE Query End

83

VertiPaq SE query

For information about the columns associated with each of the Query Processing event classes, see Query Processing Events Data Columns.

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