MySQL Bugs: #6993: Max myisam_data_pointer

Bug #6993	Max myisam_data_pointer_size limited to 7
Submitted:	3 Dec 2004 16:06	Modified:	20 Jul 2005 2:50
Reporter:	Dean Ellis	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Server	Severity:	S3 (Non-critical)
Version:	4.1.8	OS:
Assigned to:	Ramil Kalimullin	CPU Architecture:	Any

Description:
myisam_data_pointer_size is restricted to 7.

How to repeat:
SET GLOBAL MYISAM_DATA_POINTER_SIZE=8;
SHOW VARIABLES LIKE 'MYISAM_DATA_POINTER_SIZE';

Suggested fix:
===== mysqld.cc 1.531 vs edited =====
--- 1.531/sql/mysqld.cc 2004-12-02 04:39:25 -06:00
+++ edited/mysqld.cc    2004-12-03 10:02:18 -06:00
@@ -5004,7 +5004,7 @@
    "Default pointer size to be used for MyISAM tables.",
    (gptr*) &myisam_data_pointer_size,
    (gptr*) &myisam_data_pointer_size, 0, GET_ULONG, REQUIRED_ARG,
-   4, 2, 7, 0, 1, 0},
+   4, 2, 8, 0, 1, 0},
   {"myisam_max_extra_sort_file_size", OPT_MYISAM_MAX_EXTRA_SORT_FILE_SIZE,
    "Used to help MySQL to decide when to use the slow but safe key cache index create method.",
    (gptr*) &global_system_variables.myisam_max_extra_sort_file_size,

Thank you for your bug report. This issue has been committed to our
source repository of that product and will be incorporated into the
next release.

If necessary, you can access the source repository and build the latest
available version, including the bugfix, yourself. More information 
about accessing the source trees is available at
    http://www.mysql.com/doc/en/Installing_source_tree.html

Additional info:

fixed in 4.1.8

A patch for this bug has been committed. After review, it may
be pushed to the relevant source trees for release in the next
version. You can access the patch from:

  http://lists.mysql.com/internals/26555

This bugfix was reverted. The manual should reflect it.
See the referenced patch for the explanation

I've updated the various sections that refer to
myisam_data_pointer_size.