Bug #29370 need tool to enforce mysqld error number compatibility
Submitted: 26 Jun 2007 19:12
Reporter: Timothy Smith Email Updates:
Status: Verified Impact on me:
Category:MySQL Server: Errors Severity:S3 (Non-critical)
Version:any OS:Any
Assigned to: CPU Architecture:Any

[26 Jun 2007 19:12] Timothy Smith
See bug #29245 for background.

We need a tool to enforce cross-version compatibility in error numbers.  Any error code which is defined in multiple versions must have the same value in all versions (except for ER_ERROR_LAST, which obviously will differ across versions).  

A tool, either in the source tree itself (best, but perhaps too restrictive), or in PushBuild, must check this and disallow changes which break it (or complain very loudly if such a change does make it into the code).

How to repeat:
See bug #29245.  For the correct method of adding error messages, see http://forge.mysql.com/wiki/MySQL_Internals_Error_Messages#Adding_an_error_message_in_mult...

Suggested fix:
Perhaps abi_check can be used for this purpose; however, we need to be able to add error messages in the proper way without causing a headache.