MySQL Bugs: #118469: Connection attributes for Connector/NET are incomplete/incorrect

Bug #118469	Connection attributes for Connector/NET are incomplete/incorrect
Submitted:	17 Jun 9:38	Modified:	17 Jun 10:33
Reporter:	Daniël van Eeden (OCA)	Email Updates:
Status:	Verified	Impact on me:	None
Category:	MySQL Server: Documentation	Severity:	S3 (Non-critical)
Version:	9.3	OS:	Any
Assigned to:		CPU Architecture:	Any
Tags:	connection attributes

Description:
Page: https://dev.mysql.com/doc/refman/9.3/en/performance-schema-connection-attribute-tables.htm...

This page lists this:
MySQL Connector/NET defines these attributes:
_client_version: The client library version.
_os: The operating system (for example, Linux, Win64).
_pid: The client process ID.
_platform: The machine platform (for example, x86_64).
_program_name: The client name.
_thread: The client thread ID (Windows only).

But Wireshark shows this:
Connection Attributes
Connection Attributes length: 184
Connection Attribute - _client_name: mysql-connector-net
Connection Attribute - _client_licence: GPL-2.0
Connection Attribute - _pid: 615309
Connection Attribute - _client_version: 9.3.0.0
Connection Attribute - _os: Unix
Connection Attribute - _thread: 615309
Connection Attribute - _platform: x86_32
Connection Attribute - _os: Unix-6.14
Connection Attribute - _framework: .NETCoreApp,Version=v9.0

How to repeat:
Compare docs with network packets

Suggested fix:
Add to the docs:
_client_name
_client_license
_framework

Update _thread to remove the "Windows only" note.

For _os I would expect a single attribute with "Linux" as value. However there are two connections attributes with the same name, but slightly different values. One says Unix instead of the expected Linux and the other one adds the Linux kernel version resulting in Unix-6.14

For some things like _client_name and _client_license it might be best to only list them once if they are set by all (or most) connectors. And if not then it might be good to list the actual value(s) that are to be expected (especially for _client_name)

Addition host info:

My .csproj file has this:
<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net9.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="MySql.Data" Version="9.3.0" />
  </ItemGroup>

</Project>

$ dotnet --info
.NET SDK:
 Version:           9.0.106
 Commit:            3d441471e6
 Workload version:  9.0.100-manifests.431e9f8c
 MSBuild version:   17.12.35+3d441471e

Runtime Environment:
 OS Name:     fedora
 OS Version:  42
 OS Platform: Linux
 RID:         fedora.42-x64
 Base Path:   /usr/lib64/dotnet/sdk/9.0.106/

....

Hello Daniël,

Thank you for the report and feedback.

regards,
Umesh