Bug #42026 Maximum value for max_heap_table_size in the manual is not correct
Submitted: 11 Jan 2009 6:55 Modified: 18 Jan 2009 14:28
Reporter: Sveta Smirnova Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: Documentation Severity:S3 (Non-critical)
Version:all OS:Any
Assigned to: Jon Stephens CPU Architecture:Any

[11 Jan 2009 6:55] Sveta Smirnova
Description:
User manual says maximum allowable value for max_heap_table_size is 4294967295 which is not correct for 64-bit systems:

select @@max_heap_table_size;
@@max_heap_table_size
1844674407370954752

See also bug #24052

How to repeat:
Read http://dev.mysql.com/doc/refman/5.1/en/server-system-variables.html#sysvar_max_heap_table_...

Suggested fix:
Fix the manual
[18 Jan 2009 14:28] Jon Stephens
Updated the indicated section of the Manual with a Note.

(Currently, there's no way to indicate values specific to 64-bit platforms in the options tables.)