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Add description about telemetry of builtin functions usage #6028

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Jul 30, 2021
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1 change: 1 addition & 0 deletions telemetry.md
Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ When the telemetry collection feature is enabled in TiDB, the TiDB cluster colle
- Deployment characteristics, such as the size of hardware (CPU, memory, disk), TiDB components versions, OS name.
- The status of query requests in the system, such as the number of query requests and the duration.
- Component usage, for example, whether the Async Commit feature is in use or not.
- The usage information of built-in functions, including per-function statistics on how often the function gets called. The arguments for the functions are not included.

To view the full content of the usage information shared to PingCAP, execute the following SQL statement:

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