Bug #57966 Documentation of optimizer_switch is missing index_merge_sort_union flag
Submitted: 4 Nov 2010 10:19 Modified: 5 Nov 2010 14:56
Reporter: Olav Sandstå Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: Documentation Severity:S3 (Non-critical)
Version:5.5 OS:Any
Assigned to: CPU Architecture:Any

[4 Nov 2010 10:19] Olav Sandstå 
Description:
The 5.5 documentation of valid values for optimizer_switch is missing index_merge_sort_union as a valid value.

On the following page:

http://dev.mysql.com/doc/refman/5.5/en/server-system-variables.html#sysvar_optimizer_switc...

the documentation for optimizer_switch contains the following in the "Valid Values" field:

  "index_merge={on|off}, index_merge_intersection={on|off}, index_merge_union={on|off}, engine_condition_pushdown={on|off}"

This field should also contain index_merge_sort_union.

Other than this it seems like the documentation covers index_merge_sort_union both in the examples and description of it.

How to repeat:
See above.
[5 Nov 2010 14:56] Paul DuBois 
Thank you for your bug report. This issue has been addressed in the documentation. The updated documentation will appear on our website shortly, and will be included in the next release of the relevant products.